แสดงเที่ยวบินที่มาถึงบัลติมอร์จากฟิลาเดลเฟียเวลาประมาณ 4 โมงเช้า ไม่จำเป็นต้องใช้ตารางทั้งหมด
show me the flights arriving in BALTIMORE from PHILADELPHIA at about 4 o'clockIt is not neccessary to use all the tables.
 equipment_sequence:  aircraft_code_sequence [ varchar]  aircraft_code [ varchar] 
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, flight WHERE ((flight.arrival_time <= 1630 AND flight.arrival_time >= 1530) AND CITY_1.city_code = AIRPORT_SERVICE_1.city_code AND CITY_1.city_name = 'BALTIMORE' AND flight.to_airport = AIRPORT_SERVICE_1.airport_code) AND CITY_0.city_code = AIRPORT_SERVICE_0.city_code AND CITY_0.city_name = 'PHILADELPHIA' AND flight.from_airport = AIRPORT_SERVICE_0.airport_code