Sql 需要数据库中多个相似数据中的单个数据
我想找出在这样的多个条目中显示的数据Sql 需要数据库中多个相似数据中的单个数据,sql,Sql,我想找出在这样的多个条目中显示的数据 5 296 19 7 887 DAAS GAGO {"password":""} 2017-06-24 13:33:15 2017-06-23 13:33:09 9 10 fuel 4 1 N125XP DAAS Requested 5 296 19 7 887 DAAS GAGO {"password":""} 2017-06-24 13:33:15 2017-
5 296 19 7 887 DAAS GAGO {"password":""} 2017-06-24 13:33:15 2017-06-23 13:33:09 9 10 fuel 4 1 N125XP DAAS Requested
5 296 19 7 887 DAAS GAGO {"password":""} 2017-06-24 13:33:15 2017-06-23 13:33:09 9 10 fuel 4 1 N125XP DAAS Requested
我想一次查看此数据,如何操作?我正在使用此Sql语句执行此操作:
SELECT t1.trip_id,
t1.server_trip_id,
t1.aircraft_id,
t2.flight_id,
t3.server_fid,
t3.dep,
t3.dest,
t3.service_provider,
t3.flight_name,
t3.sta,
t3.std,
t4.booking_id,
t5.server_booking_id,
t5.type,
t5.trip_number,
t5.company_id,
t5.user_id,
t5.aircraft_registration,
t5.icao,
t6.status
FROM trip t1
JOIN trip_flight t2 ON t2.trip_id = t1.trip_id
JOIN flight t3 ON t3.fid = t2.flight_id
JOIN trip_flight_booking t4 ON t4.flight_id = t2.flight_id
JOIN booking t5 ON t5.booking_id = t4.booking_id OR t5.booking_id != t4.booking_id
JOIN booking_status t6 ON t6.booking_id = t5.booking_id OR t6.booking_id != t5.booking_id
where t1.aircraft_id="19"
你确定你的联接正确吗。。。这似乎符合任何一行
t5.booking_id = t4.booking_id OR t5.booking_id != t4.booking_id
正如你所做的那样=或!=同样的价值观
也就是说,您可以使用DISTINCT
SELECT DISTINCT t1.trip_id , t1.server_trip_id, t1.aircraft_id,
t2.flight_id,
t3.server_fid,t3.dep,t3.dest,t3.service_provider,t3.flight_name,t3.sta,t3.std,
t4.booking_id,
t5.server_booking_id,t5.type,t5.trip_number,t5.company_id,t5.user_id,t5.aircraft_registration,t5.icao,
t6.status
FROM trip t1
JOIN trip_flight t2 ON t2.trip_id = t1.trip_id
JOIN flight t3 ON t3.fid = t2.flight_id
JOIN trip_flight_booking t4 ON t4.flight_id = t2.flight_id
JOIN booking t5 ON t5.booking_id = t4.booking_id OR t5.booking_id != t4.booking_id
JOIN booking_status t6 ON t6.booking_id = t5.booking_id OR t6.booking_id != t5.booking_id
where t1.aircraft_id="19"
尝试使用
不同的,尽管,更好的解决方案是尝试并理解为什么您会获得多条记录。因为我使用的数据库很旧,并且有多个状态与您在上面看到的状态类似的条目,总共有1510个结果,我获得的状态为“请求的待确认”多次删除或部分将我的结果降低到83,但是仍然有多个条目,例如:5296197887 DAAS GAGO{“密码”:“}2017-06-2413:33:152017-06-2313:33:099 13燃料41N125XP DAAS挂起此结果在任何其他状态之前挂起4次