แสดงรายการเที่ยวบินจาก DALLAS FORT WORTH ไปบัลติมอร์ด้วย AA และ DL ไม่จำเป็นต้องใช้ตารางทั้งหมด
show me the list of flights from DALLAS FORT WORTH to BALTIMORE on AA and DLIt is not neccessary to use all the tables.
 city:  city_code [ varchar]  city_name [ varchar]  state_code [ varchar]  country_name [ varchar]  time_zone_code [ varchar] 
SELECT DISTINCT flight.flight_id FROM airport_service AS AIRPORT_SERVICE_0, airport_service AS AIRPORT_SERVICE_1, airport_service AS AIRPORT_SERVICE_2, city AS CITY_0, city AS CITY_1, city AS CITY_2, flight WHERE (((flight.airline_code = 'AA') OR (flight.airline_code = 'DL')) AND CITY_2.city_code = AIRPORT_SERVICE_2.city_code AND CITY_2.city_name = 'BALTIMORE' AND flight.to_airport = AIRPORT_SERVICE_2.airport_code) AND (CITY_0.city_code = AIRPORT_SERVICE_0.city_code AND CITY_0.city_name = 'DALLAS FORT WORTH' AND flight.from_airport = AIRPORT_SERVICE_0.airport_code)