แสดงรายการเที่ยวบินทั้งหมดจากเดนเวอร์ไปซานฟรานซิสโกในบ่ายวันพุธ ไม่จำเป็นต้องใช้ตารางทั้งหมด
list all flights from DENVER to SAN FRANCISCO on wednesday afternoonIt is not neccessary to use all the tables.
 airport_service:  city_code [ varchar]  airport_code [ varchar]  miles_distant [ int]  direction [ varchar]  minutes_distant [ int] 
SELECT DISTINCT flight.flight_id FROM airport_service AS AIRPORT_SERVICE_0, airport_service AS AIRPORT_SERVICE_1, city AS CITY_0, city AS CITY_1, date_day, days, flight WHERE (((flight.departure_time BETWEEN 1200 AND 1800) AND date_day.day_number = 23 AND date_day.month_number = 4 AND date_day.year = 1991 AND days.day_name = date_day.day_name AND flight.flight_days = days.days_code) AND CITY_1.city_code = AIRPORT_SERVICE_1.city_code AND CITY_1.city_name = 'SAN FRANCISCO' AND flight.to_airport = AIRPORT_SERVICE_1.airport_code) AND CITY_0.city_code = AIRPORT_SERVICE_0.city_code AND CITY_0.city_name = 'DENVER' AND flight.from_airport = AIRPORT_SERVICE_0.airport_code