2
我有這兩個表MySQL查詢 - 2個外鍵
airports: airportid, airportname
flights: flightid, from_airport, to_airport
其中from_airport
和to_airport
是外鍵。
我可以連接的表或者在airportid
和from_airport
或airportid
和to_airport
,要麼我得到的to_airport
或from_airport
名字名字,但我想無論是在一個查詢或以最低的成本來選擇這兩個to_airport
和from_airport
名。
有沒有可能?怎麼樣??
這裏是我的查詢:做的時候
SELECT
flight.idflight,
flight.idairline,
flight.from_airport,
flight.to_airport,
flight.number,
airports.name AS origin
FROM
flight
Inner Join airports ON flight.from_airport = airports.idairports