CREATE TABLE FLIGHTS (FlightNo VARCHAR(255), SourceAirport VARCHAR(255)); CREATE TABLE AIRPORTS (AirportCode VARCHAR(255), City VARCHAR(255))
What are flight numbers of flights departing from City "Aberdeen "?
    
SQL: SELECT T1.FlightNo FROM FLIGHTS AS T1 JOIN AIRPORTS AS T2 ON T1.SourceAirport = T2.AirportCode WHERE T2.City = "Aberdeen"