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-- Database schema
| Activity : actid [ INT ] primary_key , activity_name [ TEXT ] | Participates_in : stuid [ INT ] Participates_in.stuid = Student.StuID , actid [ INT ] Participates_in.actid = Activity.actid | Faculty_Participates_in : FacID [ INT ] Faculty_Participates_in.FacID = Faculty.FacID , actid [ INT ] Faculty_Participates_in.actid = Activity.actid | Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Faculty : FacID [ INT ] primary_key , Lname [ TEXT ] , Fname [ TEXT ] , Rank [ TEXT ] , Sex [ TEXT ] , Phone [ INT ] , Room [ TEXT ] , Building [ TEXT ] |
-- -- What are the first names of the faculty members playing both Canoeing and Kayaking?
| SELECT T1.lname FROM Faculty AS T1 JOIN Faculty_participates_in AS T2 ON T1.facID = T2.facID JOIN activity AS T3 ON T2.actid = T2.actid WHERE T3.activity_name = 'Canoeing' INTERSECT SELECT T1.lname FROM Faculty AS T1 JOIN Faculty_participates_in AS T2 ON T1.facID = T2.facID JOIN activity AS T3 ON T2.actid = T2.actid WHERE T3.activity_name = 'Kayaking'; |
-- Database schema
| Activity : actid [ INT ] primary_key , activity_name [ TEXT ] | Participates_in : stuid [ INT ] Participates_in.stuid = Student.StuID , actid [ INT ] Participates_in.actid = Activity.actid | Faculty_Participates_in : FacID [ INT ] Faculty_Participates_in.FacID = Faculty.FacID , actid [ INT ] Faculty_Participates_in.actid = Activity.actid | Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Faculty : FacID [ INT ] primary_key , Lname [ TEXT ] , Fname [ TEXT ] , Rank [ TEXT ] , Sex [ TEXT ] , Phone [ INT ] , Room [ TEXT ] , Building [ TEXT ] |
-- -- Find the ids of the students who participate in Canoeing and Kayaking.
| SELECT T1.stuid FROM participates_in AS T1 JOIN activity AS T2 ON T2.actid = T2.actid WHERE T2.activity_name = 'Canoeing' INTERSECT SELECT T1.stuid FROM participates_in AS T1 JOIN activity AS T2 ON T2.actid = T2.actid WHERE T2.activity_name = 'Kayaking'; |
-- Database schema
| Activity : actid [ INT ] primary_key , activity_name [ TEXT ] | Participates_in : stuid [ INT ] Participates_in.stuid = Student.StuID , actid [ INT ] Participates_in.actid = Activity.actid | Faculty_Participates_in : FacID [ INT ] Faculty_Participates_in.FacID = Faculty.FacID , actid [ INT ] Faculty_Participates_in.actid = Activity.actid | Student : StuID [ INT ] primary_key , LName [ TEXT ] , Fname [ TEXT ] , Age [ INT ] , Sex [ TEXT ] , Major [ INT ] , Advisor [ INT ] , city_code [ TEXT ] | Faculty : FacID [ INT ] primary_key , Lname [ TEXT ] , Fname [ TEXT ] , Rank [ TEXT ] , Sex [ TEXT ] , Phone [ INT ] , Room [ TEXT ] , Building [ TEXT ] |
-- -- Which students participate in both Canoeing and Kayaking as their activities? Tell me their student ids.
| SELECT T1.stuid FROM participates_in AS T1 JOIN activity AS T2 ON T2.actid = T2.actid WHERE T2.activity_name = 'Canoeing' INTERSECT SELECT T1.stuid FROM participates_in AS T1 JOIN activity AS T2 ON T2.actid = T2.actid WHERE T2.activity_name = 'Kayaking'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name of the airport in the city of Goroka.
| SELECT name FROM airports WHERE city = 'Goroka'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the names of the airports in the city of Goroka?
| SELECT name FROM airports WHERE city = 'Goroka'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name, city, country, and altitude (or elevation) of the airports in the city of New York.
| SELECT name , city , country , elevation FROM airports WHERE city = 'New York'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name, city, country, and elevation for every airport in the city of New York?
| SELECT name , city , country , elevation FROM airports WHERE city = 'New York'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airlines are there?
| SELECT count(*) FROM airlines; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the total number of airlines?
| SELECT count(*) FROM airlines; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airlines does Russia has?
| SELECT count(*) FROM airlines WHERE country = 'Russia'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of airlines based in Russia?
| SELECT count(*) FROM airlines WHERE country = 'Russia'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the maximum elevation of all airports in the country of Iceland?
| SELECT max(elevation) FROM airports WHERE country = 'Iceland'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the highest elevation of an airport in the country of Iceland?
| SELECT max(elevation) FROM airports WHERE country = 'Iceland'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name of the airports located in Cuba or Argentina.
| SELECT name FROM airports WHERE country = 'Cuba' OR country = 'Argentina'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the names of all airports in Cuba or Argentina?
| SELECT name FROM airports WHERE country = 'Cuba' OR country = 'Argentina'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the country of the airlines whose name starts with 'Orbit'.
| SELECT country FROM airlines WHERE name LIKE 'Orbit%'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the countries of all airlines whose names start with Orbit?
| SELECT country FROM airlines WHERE name LIKE 'Orbit%'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name of airports whose altitude is between -50 and 50.
| SELECT name FROM airports WHERE elevation BETWEEN -50 AND 50; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the names of all airports whose elevation is between -50 and 50?
| SELECT name FROM airports WHERE elevation BETWEEN -50 AND 50; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Which country is the airport that has the highest altitude located in?
| SELECT country FROM airports ORDER BY elevation DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the country of the airport with the highest elevation?
| SELECT country FROM airports ORDER BY elevation DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of airports whose name contain the word 'International'.
| SELECT count(*) FROM airports WHERE name LIKE '%International%'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airports' names have the word Interanation in them?
| SELECT count(*) FROM airports WHERE name LIKE '%International%'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many different cities do have some airport in the country of Greenland?
| SELECT count(DISTINCT city) FROM airports WHERE country = 'Greenland'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- In how many cities are there airports in the country of Greenland?
| SELECT count(DISTINCT city) FROM airports WHERE country = 'Greenland'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes operated by American Airlines.
| SELECT count(*) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid WHERE T1.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many routes does American Airlines operate?
| SELECT count(*) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid WHERE T1.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes whose destination airports are in Canada.
| SELECT count(*) FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE country = 'Canada'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many routes end in a Canadian airport?
| SELECT count(*) FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE country = 'Canada'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name, city, and country of the airport that has the lowest altitude.
| SELECT name , city , country FROM airports ORDER BY elevation LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name, city, and country of the airport with the lowest altitude?
| SELECT name , city , country FROM airports ORDER BY elevation LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name, city, and country of the airport that has the highest latitude.
| SELECT name , city , country FROM airports ORDER BY elevation DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name, city, and country of the airport with the highest elevation?
| SELECT name , city , country FROM airports ORDER BY elevation DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name and city of the airport which is the destination of the most number of routes.
| SELECT T1.name , T1.city , T2.dst_apid FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid GROUP BY T2.dst_apid ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name and city of the airport that the most routes end at?
| SELECT T1.name , T1.city , T2.dst_apid FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid GROUP BY T2.dst_apid ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the names of the top 10 airlines that operate the most number of routes.
| SELECT T1.name , T2.alid FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T2.alid ORDER BY count(*) DESC LIMIT 10; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- For the airline ids with the top 10 most routes operated, what are their names?
| SELECT T1.name , T2.alid FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T2.alid ORDER BY count(*) DESC LIMIT 10; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name and city of the airport which is the source for the most number of flight routes.
| SELECT T1.name , T1.city , T2.src_apid FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T2.src_apid ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name and city of the airport from most of the routes start?
| SELECT T1.name , T1.city , T2.src_apid FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T2.src_apid ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of different airports which are the destinations of the American Airlines.
| SELECT count(DISTINCT dst_apid) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid WHERE T1.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of different different airports that are destinations for American Airlines?
| SELECT count(DISTINCT dst_apid) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid WHERE T1.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Which countries has the most number of airlines?
| SELECT country FROM airlines GROUP BY country ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name of the country with the most number of home airlines?
| SELECT country FROM airlines GROUP BY country ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Which countries has the most number of airlines whose active status is 'Y'?
| SELECT country FROM airlines WHERE active = 'Y' GROUP BY country ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the countries with the most airlines whose active status is Y?
| SELECT country FROM airlines WHERE active = 'Y' GROUP BY country ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- List all countries and their number of airlines in the descending order of number of airlines.
| SELECT country , count(*) FROM airlines GROUP BY country ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airlines operate out of each country in descending order?
| SELECT country , count(*) FROM airlines GROUP BY country ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airports are there per country? Order the countries by decreasing number of airports.
| SELECT count(*) , country FROM airports GROUP BY country ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of airports per country, ordered from most to least?
| SELECT count(*) , country FROM airports GROUP BY country ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airports are there per city in the United States? Order the cities by decreasing number of airports.
| SELECT count(*) , city FROM airports WHERE country = 'United States' GROUP BY city ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many airports are there per city in the US ordered from most to least?
| SELECT count(*) , city FROM airports WHERE country = 'United States' GROUP BY city ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Return the cities with more than 3 airports in the United States.
| SELECT city FROM airports WHERE country = 'United States' GROUP BY city HAVING count(*) > 3; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of cities in the United States with more than 3 airports?
| SELECT city FROM airports WHERE country = 'United States' GROUP BY city HAVING count(*) > 3; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many cities are there that have more than 3 airports?
| SELECT count(*) FROM (SELECT city FROM airports GROUP BY city HAVING count(*) > 3); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the count of cities with more than 3 airports?
| SELECT count(*) FROM (SELECT city FROM airports GROUP BY city HAVING count(*) > 3); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- List the cities which have more than one airport and number of airports.
| SELECT city , count(*) FROM airports GROUP BY city HAVING count(*) > 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the names of all cities with more than one airport and how many airports do they have?
| SELECT city , count(*) FROM airports GROUP BY city HAVING count(*) > 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- List the cities which have more than 2 airports sorted by the number of airports.
| SELECT city FROM airports GROUP BY city HAVING count(*) > 2 ORDER BY count(*); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the cities that have more than 2 airports sorted by number of airports?
| SELECT city FROM airports GROUP BY city HAVING count(*) > 2 ORDER BY count(*); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes for each source airport and the airport name.
| SELECT count(*) , T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T1.name; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- For each airport name, how many routes start at that airport?
| SELECT count(*) , T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T1.name; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes and airport name for each source airport, order the results by decreasing number of routes.
| SELECT count(*) , T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T1.name ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- For each airport name, how many routes start at that airport, ordered from most to least?
| SELECT count(*) , T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T1.name ORDER BY count(*) DESC; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the average elevation of all airports for each country.
| SELECT avg(elevation) , country FROM airports GROUP BY country; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- For each country, what is the average elevation of that country's airports?
| SELECT avg(elevation) , country FROM airports GROUP BY country; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the cities which have exactly two airports.
| SELECT city FROM airports GROUP BY city HAVING count(*) = 2; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What are the cities with exactly two airports?
| SELECT city FROM airports GROUP BY city HAVING count(*) = 2; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- For each country and airline name, how many routes are there?
| SELECT T1.country , T1.name , count(*) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T1.country , T1.name; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the total number of routes for each country and airline in that country?
| SELECT T1.country , T1.name , count(*) FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T1.country , T1.name; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes with destination airports in Italy.
| SELECT count(*) FROM routes AS T1 JOIN airports AS T2 ON T1.dst_apid = T2.apid WHERE T2.country = 'Italy'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of routes whose destinations are Italian airports?
| SELECT count(*) FROM routes AS T1 JOIN airports AS T2 ON T1.dst_apid = T2.apid WHERE T2.country = 'Italy'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Return the number of routes with destination airport in Italy operated by the airline with name 'American Airlines'.
| SELECT count(*) FROM routes AS T1 JOIN airports AS T2 ON T1.dst_apid = T2.apid JOIN airlines AS T3 ON T1.alid = T3.alid WHERE T2.country = 'Italy' AND T3.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of routes operated by the airline American Airlines whose destinations are in Italy?
| SELECT count(*) FROM routes AS T1 JOIN airports AS T2 ON T1.dst_apid = T2.apid JOIN airlines AS T3 ON T1.alid = T3.alid WHERE T2.country = 'Italy' AND T3.name = 'American Airlines'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes that have destination John F Kennedy International Airport.
| SELECT count(*) FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE T1.name = 'John F Kennedy International Airport'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the number of routes that end at John F Kennedy International Airport?
| SELECT count(*) FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE T1.name = 'John F Kennedy International Airport'; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the number of routes from the United States to Canada.
| SELECT count(*) FROM routes WHERE dst_apid IN (SELECT apid FROM airports WHERE country = 'Canada') AND src_apid IN (SELECT apid FROM airports WHERE country = 'United States'); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- How many routes go from the United States to Canada?
| SELECT count(*) FROM routes WHERE dst_apid IN (SELECT apid FROM airports WHERE country = 'Canada') AND src_apid IN (SELECT apid FROM airports WHERE country = 'United States'); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the id of routes whose source and destination airports are in the United States.
| SELECT rid FROM routes WHERE dst_apid IN (SELECT apid FROM airports WHERE country = 'United States') AND src_apid IN (SELECT apid FROM airports WHERE country = 'United States'); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the id of the routes whose source and destination airports are in the United States?
| SELECT rid FROM routes WHERE dst_apid IN (SELECT apid FROM airports WHERE country = 'United States') AND src_apid IN (SELECT apid FROM airports WHERE country = 'United States'); |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the name of airline which runs the most number of routes.
| SELECT T1.name FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name of the airline with the most routes?
| SELECT T1.name FROM airlines AS T1 JOIN routes AS T2 ON T1.alid = T2.alid GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the busiest source airport that runs most number of routes in China.
| SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid WHERE T1.country = 'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name of the airport with the most number of routes that start in China?
| SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid WHERE T1.country = 'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- Find the busiest destination airport that runs most number of routes in China.
| SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE T1.country = 'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| routes : rid [ INT ] primary_key , dst_apid [ INT ] routes.dst_apid = airports.apid , dst_ap [ TEXT ] , src_apid [ INT ] routes.src_apid = airports.apid , src_ap [ TEXT ] , alid [ INT ] routes.alid = airlines.alid , airline [ TEXT ] , codeshare [ TEXT ] | airports : apid [ INT ] primary_key , name [ TEXT ] , city [ TEXT ] , country [ TEXT ] , x [ INT ] , y [ INT ] , elevation [ INT ] , iata [ TEXT ] , icao [ TEXT ] | airlines : alid [ INT ] primary_key , name [ TEXT ] , iata [ TEXT ] , icao [ TEXT ] , callsign [ TEXT ] , country [ TEXT ] , active [ TEXT ] |
-- -- What is the name of the airport that is the destination of the most number of routes that start in China?
| SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE T1.country = 'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- What is the id of the most recent order?
| SELECT order_id FROM orders ORDER BY date_order_placed DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find the id of the order made most recently.
| SELECT order_id FROM orders ORDER BY date_order_placed DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- what are the order id and customer id of the oldest order?
| SELECT order_id , customer_id FROM orders ORDER BY date_order_placed LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find the order id and customer id associated with the oldest order.
| SELECT order_id , customer_id FROM orders ORDER BY date_order_placed LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find the id of the order whose shipment tracking number is "3452".
| SELECT order_id FROM shipments WHERE shipment_tracking_number = "3452"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Which order's shipment tracking number is "3452"? Give me the id of the order.
| SELECT order_id FROM shipments WHERE shipment_tracking_number = "3452"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find the ids of all the order items whose product id is 11.
| SELECT order_item_id FROM order_items WHERE product_id = 11; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find all the order items whose product id is 11. What are the order item ids?
| SELECT order_item_id FROM order_items WHERE product_id = 11; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- List the name of all the distinct customers who have orders with status "Packing".
| SELECT DISTINCT T1.customer_name FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.order_status = "Packing"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Which customers have orders with status "Packing"? Give me the customer names.
| SELECT DISTINCT T1.customer_name FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.order_status = "Packing"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Find the details of all the distinct customers who have orders with status "On Road".
| SELECT DISTINCT T1.customer_details FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.order_status = "On Road"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- What are the distinct customers who have orders with status "On Road"? Give me the customer details?
| SELECT DISTINCT T1.customer_details FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.order_status = "On Road"; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- What is the name of the customer who has the most orders?
| SELECT T1.customer_name FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- Which customer made the most orders? Find the customer name.
| SELECT T1.customer_name FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_name [ TEXT ] , customer_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , invoice_date [ TEXT ] , invoice_details [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , order_status [ TEXT ] , date_order_placed [ TEXT ] , order_details [ TEXT ] | Products : product_id [ INT ] primary_key , product_name [ TEXT ] , product_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , product_id [ INT ] Order_Items.product_id = Products.product_id , order_id [ INT ] Order_Items.order_id = Orders.order_id , order_item_status [ TEXT ] , order_item_details [ TEXT ] | Shipments : shipment_id [ INT ] primary_key , order_id [ INT ] Shipments.order_id = Orders.order_id , invoice_number [ INT ] Shipments.invoice_number = Invoices.invoice_number , shipment_tracking_number [ TEXT ] , shipment_date [ TEXT ] , other_shipment_details [ TEXT ] | Shipment_Items : shipment_id [ INT ] Shipment_Items.shipment_id = Shipments.shipment_id , order_item_id [ INT ] Shipment_Items.order_item_id = Order_Items.order_item_id |
-- -- What is the customer id of the customer who has the most orders?
| SELECT T1.customer_id FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1; |
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