Dataset Viewer
Auto-converted to Parquet
instruction
stringlengths
11
67
input
stringlengths
846
3.85k
output
stringlengths
44
314
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ˜ 이름과 μœ„μΉ˜λ₯Ό μ•Œλ €μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, ST_AsText(geom) AS location FROM landmarks WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
μ„œμšΈμ˜ λͺ¨λ“  κ°• 이름과 경둜λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm, ST_AsText(geom) AS path FROM rivers WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
ν”„λž‘μŠ€μ— μžˆλŠ” λ„μ‹œ 쀑 인ꡬ가 κ°€μž₯ λ§Žμ€ λ„μ‹œλ₯Ό μ•Œλ €μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, population FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€') ORDER BY population DESC LIMIT 1;"
미ꡭ에 μžˆλŠ” λ„μ‹œ 쀑 면적이 κ°€μž₯ 넓은 λ„μ‹œλ₯Ό μ•Œλ €μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, area FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λ―Έκ΅­') ORDER BY area DESC LIMIT 1;"
μ„œμšΈμ— μœ„μΉ˜ν•œ λͺ¨λ“  λžœλ“œλ§ˆν¬μ˜ 이름과 μ„€λͺ…을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm, description FROM landmarks WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
ν•œκ°•μ˜ 경둜 데이터λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT kr_nm, ST_AsText(geom) AS path FROM rivers WHERE kr_nm = 'ν•œκ°•';"
λŒ€ν•œλ―Όκ΅­μ— μœ„μΉ˜ν•œ λͺ¨λ“  λ„μ‹œμ˜ 이름과 인ꡬ 수λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, population FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
센강이 μœ„μΉ˜ν•œ λ„μ‹œμ™€ κ΅­κ°€μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS city_name, n.kr_nm AS country_name FROM rivers r JOIN cities c ON r.city_id = c.id JOIN countries n ON r.country_id = n.id WHERE r.kr_nm = 'μ„Όκ°•';"
κ°•λ‚¨λŒ€λ‘œκ°€ μœ„μΉ˜ν•œ λ„μ‹œμ™€ κ΅­κ°€μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS city_name, n.kr_nm AS country_name FROM roads r JOIN cities c ON r.city_id = c.id JOIN countries n ON r.country_id = n.id WHERE r.kr_nm = 'κ°•λ‚¨λŒ€λ‘œ';"
λŒ€ν•œλ―Όκ΅­μ˜ 전체 인ꡬ 수λ₯Ό μ•Œλ €μ€˜
"CREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT population FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­';"
μ„œμšΈμ— μžˆλŠ” λͺ¨λ“  κ°•μ˜ 이름과 경둜 데이터λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm, ST_AsText(geom) AS path FROM rivers WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
ν”„λž‘μŠ€μ— μœ„μΉ˜ν•œ λͺ¨λ“  λ„μ‹œμ˜ 이름과 면적을 κ°€μ Έμ™€μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, area FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€');"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λ„λ‘œμ˜ 이름과 경둜λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, ST_AsText(geom) AS path FROM roads WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
μ„œμšΈμ— μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ˜ μ’Œν‘œλ₯Ό GeoJSON ν˜•μ‹μœΌλ‘œ κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm, ST_AsGeoJSON(geom) AS geojson FROM landmarks WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
μ„Όκ°•μ˜ 길이λ₯Ό κ΅¬ν•΄μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT kr_nm, ST_Length(geom) AS length FROM rivers WHERE kr_nm = 'μ„Όκ°•';"
λŒ€ν•œλ―Όκ΅­μ˜ 면적을 μ•Œλ €μ€˜
"CREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, ST_Area(geom) AS area FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­';"
λΆ€μ‚°μ˜ 면적을 μ•Œλ €μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT area FROM cities WHERE kr_nm = 'λΆ€μ‚°'"
ν•œκ°•μ΄ μ„œμšΈμ˜ 경계 내에 ν¬ν•¨λ˜λŠ”μ§€ ν™•μΈν•΄μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ST_Within((SELECT geom FROM rivers WHERE kr_nm = 'ν•œκ°•'), (SELECT geom FROM cities WHERE kr_nm = 'μ„œμšΈ')) AS is_within;"
ν”„λž‘μŠ€μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ˜ 쀑심점을 κ΅¬ν•΄μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm, ST_Centroid(geom) AS centroid FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€');"
μ„œμšΈκ³Ό μ›Œμ‹±ν„΄ μ‚¬μ΄μ˜ 직선 거리(λ―Έν„° λ‹¨μœ„)λ₯Ό κ³„μ‚°ν•΄μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ST_Distance((SELECT geom FROM cities WHERE kr_nm = 'μ„œμšΈ'), (SELECT geom FROM cities WHERE kr_nm = 'μ›Œμ‹±ν„΄')) AS distance;"
μ„œμšΈκ³Ό κ°•λ‚¨λŒ€λ‘œκ°€ κ΅μ°¨ν•˜λŠ”μ§€ ν™•μΈν•΄μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ST_Intersects((SELECT geom FROM cities WHERE kr_nm = 'μ„œμšΈ'), (SELECT geom FROM roads WHERE kr_nm = 'κ°•λ‚¨λŒ€λ‘œ')) AS intersects;"
경볡ꢁ의 μœ„μΉ˜μ—μ„œ 5km 반경 내에 μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/"
"SELECT kr_nm FROM landmarks WHERE ST_DWithin((SELECT geom FROM landmarks WHERE kr_nm = '경볡ꢁ'), geom, 5000);"
ν•œκ°•μ˜ μ‹œμž‘μ κ³Ό 끝점을 κ΅¬ν•΄μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT ST_StartPoint(geom) AS start_point, ST_EndPoint(geom) AS end_point FROM rivers WHERE kr_nm = 'ν•œκ°•';"
μ—νŽ νƒ‘μ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ κ°•μ˜ 이름과 거리λ₯Ό κ΅¬ν•΄μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT kr_nm, ST_Distance((SELECT geom FROM landmarks WHERE kr_nm = 'μ—νŽ νƒ‘'), geom) AS distance FROM rivers ORDER BY distance LIMIT 1;"
μ„œμšΈμ— μœ„μΉ˜ν•œ λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ ν•΄λ‹Ή λžœλ“œλ§ˆν¬κ°€ μœ„μΉ˜ν•œ λ„μ‹œμ™€ κ΅­κ°€μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT l.kr_nm AS landmark_name, c.kr_nm AS city_name, n.kr_nm AS country_name FROM landmarks l JOIN cities c ON l.city_id = c.id JOIN countries n ON l.country_id = n.id WHERE c.kr_nm = 'μ„œμšΈ';"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” κ°•κ³Ό λ„λ‘œμ˜ 이름을 ν•˜λ‚˜μ˜ 결과둜 ν•©μ³μ„œ κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm AS name, 'κ°•' AS type FROM rivers WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­') UNION SELECT kr_nm AS name, 'λ„λ‘œ' AS type FROM roads WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
μ„œμšΈμ— μžˆλŠ” λ„λ‘œμ™€ κ°•μ˜ 경둜 데이터λ₯Ό ν•˜λ‚˜μ˜ 결과둜 ν•©μ³μ„œ κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm AS name, ST_AsText(geom) AS path, 'λ„λ‘œ' AS type FROM roads WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ') UNION SELECT kr_nm AS name, ST_AsText(geom) AS path, 'κ°•' AS type FROM rivers WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
ν”„λž‘μŠ€μ— μžˆλŠ” λžœλ“œλ§ˆν¬μ™€ κ°•μ˜ 이름과 μ„€λͺ… λ˜λŠ” 경둜 데이터λ₯Ό ν•©μ³μ„œ κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm AS name, description AS info, 'λžœλ“œλ§ˆν¬' AS type FROM landmarks WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€') UNION SELECT kr_nm AS name, ST_AsText(geom) AS info, 'κ°•' AS type FROM rivers WHERE country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€');"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ™€ ν•΄λ‹Ή λ„μ‹œλ₯Ό μ§€λ‚˜λŠ” κ°• 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ci.kr_nm AS city_name, ri.kr_nm AS river_name FROM cities ci JOIN rivers ri ON ci.id = ri.city_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
각 λžœλ“œλ§ˆν¬μ˜ 이름과 ν•΄λ‹Ή λžœλ“œλ§ˆν¬κ°€ μœ„μΉ˜ν•œ ꡭ가와 λ„μ‹œμ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT l.kr_nm AS landmark_name, n.kr_nm AS country_name, c.kr_nm AS city_name FROM landmarks l JOIN countries n ON l.country_id = n.id JOIN cities c ON l.city_id = c.id;"
λŒ€ν•œλ―Όκ΅­μ˜ λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ κ·Έ 근처 10km 이내에 μžˆλŠ” κ°•μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT l.kr_nm AS landmark_name, r.kr_nm AS river_name FROM landmarks l JOIN rivers r ON ST_DWithin(l.geom, r.geom, 10000) WHERE l.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
μ„œμšΈμ— μžˆλŠ” λͺ¨λ“  λ„λ‘œμ™€ κ°•μ˜ 이름과 총 길이λ₯Ό κ³„μ‚°ν•΄μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT kr_nm AS name, ST_Length(geom) AS total_length, 'λ„λ‘œ' AS type FROM roads WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ') UNION SELECT kr_nm AS name, ST_Length(geom) AS total_length, 'κ°•' AS type FROM rivers WHERE city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ');"
λŒ€ν•œλ―Όκ΅­μ— μœ„μΉ˜ν•œ λͺ¨λ“  λ„μ‹œμ˜ 이름과 κ·Έ λ„μ‹œλ₯Ό μ§€λ‚˜κ°€λŠ” κ°•κ³Ό λ„λ‘œμ˜ 개수λ₯Ό μ•Œλ €μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(DISTINCT ri.id) AS river_count, COUNT(DISTINCT ro.id) AS road_count FROM cities ci LEFT JOIN rivers ri ON ci.id = ri.city_id LEFT JOIN roads ro ON ci.id = ro.city_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­') GROUP BY ci.kr_nm;"
ν”„λž‘μŠ€μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ˜ 이름, λžœλ“œλ§ˆν¬μ˜ 개수, 그리고 κ°•μ˜ 개수λ₯Ό μ•Œλ €μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/\n\n\n\nCREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(DISTINCT l.id) AS landmark_count, COUNT(DISTINCT r.id) AS river_count FROM cities ci LEFT JOIN landmarks l ON ci.id = l.city_id LEFT JOIN rivers r ON ci.id = r.city_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€') GROUP BY ci.kr_nm;"
μ„œμšΈμ„ μ§€λ‚˜λŠ” κ°•μ˜ 이름과 ν•΄λ‹Ή κ°•μ˜ μ‹œμž‘μ κ³Ό 끝점을 μ•Œλ €μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT r.kr_nm AS river_name, ST_StartPoint(r.geom) AS start_point, ST_EndPoint(r.geom) AS end_point FROM rivers r JOIN cities c ON r.city_id = c.id WHERE c.kr_nm = 'μ„œμšΈ';"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ κ·Έ μ£Όλ³€ 1km 이내에 μžˆλŠ” λ„λ‘œμ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, ro.kr_nm AS road_name FROM landmarks l JOIN roads ro ON ST_DWithin(l.geom, ro.geom, 1000) WHERE l.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λ„λ‘œμ˜ 이름과 ν•΄λ‹Ή λ„λ‘œκ°€ μœ„μΉ˜ν•œ λ„μ‹œμ™€ κ΅­κ°€μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ro.kr_nm AS road_name, ci.kr_nm AS city_name, co.kr_nm AS country_name FROM roads ro JOIN cities ci ON ro.city_id = ci.id JOIN countries co ON ro.country_id = co.id WHERE co.kr_nm = 'λŒ€ν•œλ―Όκ΅­';"
νŒŒλ¦¬μ— μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ κ·Έ λžœλ“œλ§ˆν¬μ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ κ°•μ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, r.kr_nm AS river_name, ST_Distance(l.geom, r.geom) AS distance FROM landmarks l CROSS JOIN rivers r WHERE l.city_id = (SELECT id FROM cities WHERE kr_nm = '파리') ORDER BY distance LIMIT 1;"
ν”„λž‘μŠ€μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ˜ 이름과 κ·Έ λ„μ‹œ 내에 μœ„μΉ˜ν•œ λžœλ“œλ§ˆν¬μ™€ κ°•μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/\n\n\n\nCREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT ci.kr_nm AS city_name, l.kr_nm AS landmark_name, r.kr_nm AS river_name FROM cities ci LEFT JOIN landmarks l ON ci.id = l.city_id LEFT JOIN rivers r ON ci.id = r.city_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'ν”„λž‘μŠ€');"
미ꡭ의 λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ λ„λ‘œμ˜ 이름과 경둜 데이터λ₯Ό ν•˜λ‚˜μ˜ 결과둜 ν•©μ³μ„œ κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS name, ST_AsText(l.geom) AS geometry, 'λžœλ“œλ§ˆν¬' AS type FROM landmarks l WHERE l.country_id = (SELECT id FROM countries WHERE kr_nm = 'λ―Έκ΅­') UNION SELECT ro.kr_nm AS name, ST_AsText(ro.geom) AS geometry, 'λ„λ‘œ' AS type FROM roads ro WHERE ro.country_id = (SELECT id FROM countries WHERE kr_nm = 'λ―Έκ΅­');"
Seoul에 μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ ν•΄λ‹Ή λžœλ“œλ§ˆν¬μ—μ„œ 5km 내에 μœ„μΉ˜ν•œ λ„λ‘œμ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, ro.kr_nm AS road_name, ST_Distance(l.geom, ro.geom) AS distance FROM landmarks l JOIN roads ro ON ST_DWithin(l.geom, ro.geom, 5000) WHERE l.city_id = (SELECT id FROM cities WHERE en_nm = 'Seoul');"
λŒ€ν•œλ―Όκ΅­μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ˜ 이름과 ν•΄λ‹Ή λ„μ‹œμ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ λžœλ“œλ§ˆν¬μ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ci.kr_nm AS city_name, l.kr_nm AS landmark_name, ST_Distance(ci.geom, l.geom) AS distance FROM cities ci JOIN landmarks l ON ci.country_id = l.country_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­') ORDER BY distance LIMIT 1;"
λŒ€ν•œλ―Όκ΅­μ˜ λͺ¨λ“  κ°•κ³Ό κ·Έ 강이 μ§€λ‚˜κ°€λŠ” λ„μ‹œμ˜ 이름을 쀑볡 없이 κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT DISTINCT r.kr_nm AS river_name, c.kr_nm AS city_name FROM rivers r JOIN cities c ON r.city_id = c.id WHERE r.country_id = (SELECT id FROM countries WHERE kr_nm = 'λŒ€ν•œλ―Όκ΅­');"
μ„œμšΈμ— μœ„μΉ˜ν•œ λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ κ·Έ λžœλ“œλ§ˆν¬μ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ λ„λ‘œμ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, ro.kr_nm AS road_name, ST_Distance(l.geom, ro.geom) AS distance FROM landmarks l CROSS JOIN roads ro WHERE l.city_id = (SELECT id FROM cities WHERE kr_nm = 'μ„œμšΈ') ORDER BY distance LIMIT 1;"
도쿄에 μžˆλŠ” λͺ¨λ“  λžœλ“œλ§ˆν¬μ™€ κ·Έ λžœλ“œλ§ˆν¬μ—μ„œ 2km 내에 μžˆλŠ” κ°• 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, r.kr_nm AS river_name FROM landmarks l JOIN rivers r ON ST_DWithin(l.geom, r.geom, 2000) WHERE l.city_id = (SELECT id FROM cities WHERE kr_nm = '도쿄');"
λŸ°λ˜μ— μœ„μΉ˜ν•œ λ„λ‘œ μ€‘μ—μ„œ 길이가 κ°€μž₯ κΈ΄ λ„λ‘œμ˜ 이름과 길이λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ro.kr_nm AS road_name, ST_Length(ro.geom) AS length FROM roads ro WHERE ro.city_id = (SELECT id FROM cities WHERE kr_nm = '런던') ORDER BY length DESC LIMIT 1;"
λ² λ₯Όλ¦°μ— μžˆλŠ” λͺ¨λ“  κ°•μ˜ 이름과 ν•΄λ‹Ή κ°•μ˜ 경둜 데이터λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT r.kr_nm AS river_name, ST_AsText(r.geom) AS geometry FROM rivers r WHERE r.city_id = (SELECT id FROM cities WHERE kr_nm = 'λ² λ₯Όλ¦°');"
ν˜Έμ£Όμ— μžˆλŠ” λ„μ‹œ 쀑 면적이 κ°€μž₯ 큰 λ„μ‹œμ˜ 이름과 면적을 κ°€μ Έμ™€μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT kr_nm AS city_name, area FROM cities WHERE country_id = (SELECT id FROM countries WHERE kr_nm = '호주') ORDER BY area DESC LIMIT 1;"
베이징에 μžˆλŠ” λžœλ“œλ§ˆν¬μ™€ κ·Έ λžœλ“œλ§ˆν¬μ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ λ„λ‘œμ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, ro.kr_nm AS road_name, ST_Distance(l.geom, ro.geom) AS distance FROM landmarks l CROSS JOIN roads ro WHERE l.city_id = (SELECT id FROM cities WHERE kr_nm = '베이징') ORDER BY distance LIMIT 1;"
λ©•μ‹œμ½”μ— μœ„μΉ˜ν•œ λͺ¨λ“  λ„μ‹œμ˜ 이름과 ν•΄λ‹Ή λ„μ‹œλ₯Ό μ§€λ‚˜λŠ” κ°•μ˜ 이름을 쀑볡 없이 κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT DISTINCT c.kr_nm AS city_name, r.kr_nm AS river_name FROM cities c JOIN rivers r ON c.id = r.city_id WHERE c.country_id = (SELECT id FROM countries WHERE kr_nm = 'λ©•μ‹œμ½”');"
μ΄νƒˆλ¦¬μ•„μ— μžˆλŠ” λͺ¨λ“  λ„λ‘œμ˜ 이름과 ν•΄λ‹Ή λ„λ‘œμ˜ 길이λ₯Ό κ°€μ Έμ™€μ„œ 길이 κΈ°μ€€μœΌλ‘œ λ‚΄λ¦Όμ°¨μˆœ μ •λ ¬ν•΄μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ro.kr_nm AS road_name, ST_Length(ro.geom) AS length FROM roads ro WHERE ro.country_id = (SELECT id FROM countries WHERE kr_nm = 'μ΄νƒˆλ¦¬μ•„') ORDER BY length DESC;"
μ΄μŠ€νƒ„λΆˆμ— μžˆλŠ” λžœλ“œλ§ˆν¬μ™€ κ·Έ λžœλ“œλ§ˆν¬μ—μ„œ 3km 이내에 μžˆλŠ” κ°•μ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT l.kr_nm AS landmark_name, r.kr_nm AS river_name, ST_Distance(l.geom, r.geom) AS distance FROM landmarks l JOIN rivers r ON ST_DWithin(l.geom, r.geom, 3000) WHERE l.city_id = (SELECT id FROM cities WHERE kr_nm = 'μ΄μŠ€νƒ„λΆˆ');"
λͺ¨μŠ€ν¬λ°”에 μœ„μΉ˜ν•œ λͺ¨λ“  λ„λ‘œμ˜ 이름과 ν•΄λ‹Ή λ„λ‘œμ—μ„œ κ°€μž₯ κ°€κΉŒμš΄ λžœλ“œλ§ˆν¬μ˜ 이름과 거리λ₯Ό κ°€μ Έμ™€μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT ro.kr_nm AS road_name, l.kr_nm AS landmark_name, ST_Distance(ro.geom, l.geom) AS distance FROM roads ro CROSS JOIN landmarks l WHERE ro.city_id = (SELECT id FROM cities WHERE kr_nm = 'λͺ¨μŠ€ν¬λ°”') ORDER BY distance LIMIT 1;"
μΊλ‚˜λ‹€μ— μžˆλŠ” λͺ¨λ“  λ„μ‹œμ™€ κ·Έ λ„μ‹œμ˜ 인ꡬ, ν•΄λ‹Ή λ„μ‹œλ₯Ό μ§€λ‚˜λŠ” κ°•μ˜ 이름을 κ°€μ Έμ™€μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT ci.kr_nm AS city_name, ci.population, r.kr_nm AS river_name FROM cities ci LEFT JOIN rivers r ON ci.id = r.city_id WHERE ci.country_id = (SELECT id FROM countries WHERE kr_nm = 'μΊλ‚˜λ‹€');"
각 ꡭ가별 λžœλ“œλ§ˆν¬μ˜ 개수λ₯Ό μ•Œλ €μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, COUNT(l.id) AS landmark_count FROM countries c LEFT JOIN landmarks l ON c.id = l.country_id GROUP BY c.kr_nm;"
각 κ΅­κ°€μ˜ λͺ¨λ“  λ„μ‹œ 평균 인ꡬλ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, AVG(ci.population) AS average_population FROM countries c JOIN cities ci ON c.id = ci.country_id GROUP BY c.kr_nm;"
각 λ„μ‹œλ³„ κ°•μ˜ 개수λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(r.id) AS river_count FROM cities ci LEFT JOIN rivers r ON ci.id = r.city_id GROUP BY ci.kr_nm;"
각 ꡭ가별 λͺ¨λ“  λ„λ‘œμ˜ 총 길이λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, SUM(ST_Length(ro.geom)) AS total_road_length FROM countries c JOIN roads ro ON c.id = ro.country_id GROUP BY c.kr_nm;"
각 λ„μ‹œλ³„ λžœλ“œλ§ˆν¬μ˜ κ°œμˆ˜μ™€ 총 인ꡬλ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(l.id) AS landmark_count, SUM(ci.population) AS total_population FROM cities ci LEFT JOIN landmarks l ON ci.id = l.city_id GROUP BY ci.kr_nm;"
각 ꡭ가별 λžœλ“œλ§ˆν¬μ˜ κ°œμˆ˜μ™€ κ°•μ˜ 개수λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, COUNT(DISTINCT l.id) AS landmark_count, COUNT(DISTINCT r.id) AS river_count FROM countries c LEFT JOIN landmarks l ON c.id = l.country_id LEFT JOIN rivers r ON c.id = r.country_id GROUP BY c.kr_nm;"
각 λ„μ‹œλ³„ λ„λ‘œμ˜ κ°œμˆ˜μ™€ κ°•μ˜ 총 길이λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(ro.id) AS road_count, SUM(ST_Length(r.geom)) AS total_river_length FROM cities ci LEFT JOIN roads ro ON ci.id = ro.city_id LEFT JOIN rivers r ON ci.id = r.city_id GROUP BY ci.kr_nm;"
각 ꡭ가별 λžœλ“œλ§ˆν¬μ˜ 평균 μœ„μΉ˜λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT c.kr_nm AS country_name, ST_Centroid(ST_Union(l.geom)) AS avg_location FROM countries c JOIN landmarks l ON c.id = l.country_id GROUP BY c.kr_nm;"
각 λ„μ‹œλ³„ λžœλ“œλ§ˆν¬μ™€ λ„λ‘œμ˜ 개수λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE landmarks (\n id SERIAL PRIMARY KEY COMMENT 'λžœλ“œλ§ˆν¬ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λžœλ“œλ§ˆν¬ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λžœλ“œλ§ˆν¬ μ˜μ–΄ λͺ…μΉ­',\n description TEXT COMMENT 'λžœλ“œλ§ˆν¬ μ„€λͺ…',\n country_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λžœλ“œλ§ˆν¬κ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(POINT, 4326) COMMENT 'λžœλ“œλ§ˆν¬ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λžœλ“œλ§ˆν¬ ν…Œμ΄λΈ”';\n/*\n3 rows from landmarks table:\nid kr_nm en_nm description country_id city_id geom\n0 경볡ꢁ 'Gyeongbokgung Palace' 'μ‘°μ„ μ˜ ꢁ' 0 0 01010000005839B4C876BEF33F6F1A200000000000000000000000000000000000000\n1 μ—νŽ νƒ‘ 'Eiffel Tower' '파리의 철탑' 2 2 0101000000F3D61D1B1DB6F03F8F1F400000000000000000000000000000000000000\n2 '자유의 여신상' 'Statue of Liberty' 'λ‰΄μš•μ— μžˆλŠ” 동상' 1 50 0101000000736A2B6F4E2A133F7E317E000000000000000000000000000000000000\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/"
"SELECT ci.kr_nm AS city_name, COUNT(DISTINCT l.id) AS landmark_count, COUNT(DISTINCT ro.id) AS road_count FROM cities ci LEFT JOIN landmarks l ON ci.id = l.city_id LEFT JOIN roads ro ON ci.id = ro.city_id GROUP BY ci.kr_nm;"
각 ꡭ가별 κ°•κ³Ό λ„λ‘œμ˜ 총 길이λ₯Ό κ³„μ‚°ν•΄μ„œ λ³΄μ—¬μ€˜
"CREATE TABLE rivers (\n id SERIAL PRIMARY KEY COMMENT 'κ°• 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ°• ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ°• μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT '강이 μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT '강이 μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'κ°•μ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'κ°• ν…Œμ΄λΈ”';\n/*\n3 rows from rivers table:\nid kr_nm en_nm country_id city_id geom\n0 ν•œκ°• 'Hangang River' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν—ˆλ“œμŠ¨κ°• 'Hudson River' 1 53 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 μ„Όκ°• 'Seine River' 2 2 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, SUM(ST_Length(r.geom)) AS total_river_length, SUM(ST_Length(ro.geom)) AS total_road_length FROM countries c LEFT JOIN rivers r ON c.id = r.country_id LEFT JOIN roads ro ON c.id = ro.country_id GROUP BY c.kr_nm;"
각 κ΅­κ°€λ³„λ‘œ 인ꡬ가 5000만 이상인 λ„μ‹œμ˜ 수λ₯Ό κ³„μ‚°ν•˜κ³ , κ·Έ μˆ˜κ°€ 2개 이상인 κ΅­κ°€λ§Œ κ°€μ Έμ™€μ€˜
"CREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/\n\n\n\nCREATE TABLE countries (\n id SERIAL PRIMARY KEY COMMENT 'κ΅­κ°€ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'κ΅­κ°€ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'κ΅­κ°€ μ˜μ–΄ λͺ…μΉ­',\n population INT COMMENT 'κ΅­κ°€ 인ꡬ 수',\n geom GEOMETRY(POLYGON, 4326) COMMENT 'κ΅­κ°€μ˜ 경계에 λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id)\n) COMMENT 'κ΅­κ°€ ν…Œμ΄λΈ”';\n/*\n3 rows from countries table:\nid kr_nm en_nm population geom\n0 λŒ€ν•œλ―Όκ΅­ 'South Korea' 51231410 0106000020e610000001000000010300000001000000840000007bcf6b926fbe5f40ebf9d2a77acb4240cb489be06dbe5f40\n1 λ―Έκ΅­ 'USA' 123456771 0106000020e61000000100000001030000000100000031000000d77c96a019be5f40bcc82f4ac6ca4240b7ba3d5b1abe5f40\n2 ν”„λž‘μŠ€ 'France' 78236131 0106000020e610000001000000010300000001000000300000004162b1fd55be5f4036b687c313cb424086d9c9f756be5f40\n*/"
"SELECT c.kr_nm AS country_name, COUNT(ci.id) AS city_count FROM countries c JOIN cities ci ON c.id = ci.country_id WHERE ci.population > 50000000 GROUP BY c.kr_nm HAVING COUNT(ci.id) >= 2;"
각 λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ™€ κ·Έ λ„λ‘œμ˜ 길이λ₯Ό ν•©μ‚°ν•˜μ—¬ κ°€μž₯ κΈ΄ λ„λ‘œκ°€ μ†ν•œ λ„μ‹œλ₯Ό λ³΄μ—¬μ€˜
"CREATE TABLE roads (\n id SERIAL PRIMARY KEY COMMENT 'λ„λ‘œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„λ‘œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„λ‘œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n city_id INT COMMENT 'λ„λ‘œκ°€ μ†Œμ†λœ λ„μ‹œμ˜ ID',\n geom GEOMETRY(LINESTRING, 4326) COMMENT 'λ„λ‘œμ˜ κ²½λ‘œμ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id),\n FOREIGN KEY (city_id) REFERENCES cities(id)\n) COMMENT 'λ„λ‘œ ν…Œμ΄λΈ”';\n/*\n3 rows from roads table:\nid kr_nm en_nm country_id city_id geom\n0 κ°•λ‚¨λŒ€λ‘œ 'Gangnam-daero' 0 0 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n1 ν•΄μš΄λŒ€λ‘œ 'Haeun-daero' 0 3 0102000000020000000100000001F03F00000000000000000000000000000000000000000000000000000000000000000000000\n2 κ΅¬μ›”λ‘œ 'Guwol-ro' 0 7 0102000000020000000100000001F85D6E4F3A827C0F03F0000000000000000000000000000000000000000000000F03F\n*/\n\n\n\nCREATE TABLE cities (\n id SERIAL PRIMARY KEY COMMENT 'λ„μ‹œ 고유 번호',\n kr_nm VARCHAR(100) NOT NULL COMMENT 'λ„μ‹œ ν•œκ΅­μ–΄ λͺ…μΉ­',\n en_nm VARCHAR(100) COMMENT 'λ„μ‹œ μ˜μ–΄ λͺ…μΉ­',\n country_id INT COMMENT 'λ„μ‹œκ°€ μ†Œμ†λœ κ΅­κ°€μ˜ ID',\n population INT COMMENT 'λ„μ‹œ 인ꡬ 수',\n area INT COMMENT 'λ„μ‹œ 면적',\n geom GEOMETRY(POINT, 4326) COMMENT 'λ„μ‹œμ˜ μœ„μΉ˜μ— λŒ€ν•œ 곡간 정보',\n PRIMARY KEY (id),\n FOREIGN KEY (country_id) REFERENCES countries(id)\n) COMMENT 'λ„μ‹œ ν…Œμ΄λΈ”';\n/*\n3 rows from cities table:\nid kr_nm en_nm country_id population area geom\n0 μ„œμšΈ 'Seoul' 0 1234567 605204030.0mΒ² 01010000005839B4C876BEF33F000000000000F03F\n1 μ›Œμ‹±ν„΄ 'Washington' 1 34567889 1802204210.0mΒ² 01010000003F84C5C28AFCF3F4000000000000000F3F\n2 파리 'Paris' 2 25467432 1202514213.0mΒ² 0101000000613E8D6B17A93C3F00000000000000C03F\n*/"
"SELECT ci.kr_nm AS city_name, SUM(ST_Length(ro.geom)) AS total_road_length FROM roads ro JOIN cities ci ON ro.city_id = ci.id GROUP BY ci.kr_nm ORDER BY total_road_length DESC LIMIT 1;"
README.md exists but content is empty.
Downloads last month
82