MySQL加入帮助

Question

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嘿伙计们，我正在努力创建一个查询，给出某一天飞行员的时间表。到目前为止我已经

了

SELECT f.flight_date, l.lesson_date FROM Flight f JOIN lesson l ON f.pilot_idpilot = l.pilot_idpilot WHERE f.flight_date = CURDATE() OR l.lesson_date = CURDATE() AND pilot_idpilot = 7236;

我得到的结果是

Lesson_id | lesson_date | pilot_idpilot | idFlight | flight_date | pilot_id_pilot

是否有办法指定飞行员参与的活动类型，例如

Activity | Date |

任何帮助都会很棒！谢谢你们/女孩

Answer 1

这个怎么样：

SELECT 'Lesson' as Activity, lesson_date as Date
FROM Flight f JOIN lesson l ON f.pilot_idpilot = l.pilot_idpilot 
WHERE l.lesson_date = CURDATE() AND pilot_idpilot = 7236
UNION
SELECT 'Flight' as Activity, flight_date as Date
FROM Flight 
WHERE f.flight_date = CURDATE() AND pilot_idpilot = 7236;