我有一个关于在 MySQL 工作台中创建视图的询问。保存时出现错误:“视图的 SELECT 在 FROM 子句中包含子查询”。
这是我的声明的副本:
CREATE VIEW viewMorningReport AS
select z.AllocationDate, z.LocationName, z.StationName, a.00000100, b.01000200, c.02000300 from
(SELECT DISTINCT AllocationDate, LocationName, StationName FROM satsschema.employeeslot
where LocationName = 'T2 PML'
and StationName is not null) z
left outer join
(SELECT AllocationDate, LocationName, StationName, EmpName AS '00000100' FROM satsschema.employeeslot
WHERE Assigned = true
and (EmpTime = '00:00:00' && EmpTime < '01:00:00')) a
on z.LocationName = a.LocationName and z.StationName = a.StationName
left outer join
(SELECT AllocationDate, LocationName, StationName, EmpName AS '01000200' FROM satsschema.employeeslot
WHERE Assigned = true
and (EmpTime = '01:00:00' && EmpTime < '02:00:00')) b
on a.LocationName = b.LocationName and a.StationName = b.StationName
left outer join
(SELECT AllocationDate, LocationName, StationName, EmpName AS '02000300' FROM satsschema.employeeslot
WHERE Assigned = true
and (EmpTime = '02:00:00' && EmpTime < '03:00:00')) c
on b.LocationName = c.LocationName and b.StationName = c.StationName
知道哪里出了问题吗?