SQL server Temp table with joins inside other select
SQL server Temp table with joins inside other select
我有以下结构:
Create @temp
Select ...inser...into @temp where ...
(select ... from @temp
Join tblA where ... )
UNION
(Select ... from @temp
join tblB where ... )
在上面构建之后 table 我需要能够执行 WHERE, JOINS, ...
类似于:
Select ... from (above statement)
join ....
where....
我不知道如果 @temp、joins、union... 可以在其他 select 中。
或者我唯一能做的就是创建一个带有第一个语句结果的 @Temp2 插入,然后与其他连接一起工作,其中...?
更新 1:
我也在尝试:
With cte (query returned columns)
as
(same query I was using to build my @temp as before)
(select ... from cte
join tblA
where...)
UNION
(select ... from cte
join tblB
where...)
但我在如何执行其他连接时卡在了同一点上,其中...总结果以上
Create @temp
Select ...inser...into @temp where ...
;with temp2 as
(
select ... from @temp Join tblA where ...
UNION
Select ... from @temp join tblB where ...
)
select ... from temp2
join ....
where....
其实不用临时也可以-table:
WITH myCTE [ ( column_name [,...n] ) ]
AS
( here you define your query )
然后您只需执行 Select 但使用 CTE
Select ... from myCTE
join ....
where....
关于 CTE 你可以阅读 Here
更新后
Select fields from myCTE join table1
Union
Select fields from myCTE join table2
查询中没有括号
我有以下结构:
Create @temp
Select ...inser...into @temp where ...
(select ... from @temp
Join tblA where ... )
UNION
(Select ... from @temp
join tblB where ... )
在上面构建之后 table 我需要能够执行 WHERE, JOINS, ...
类似于:
Select ... from (above statement)
join ....
where....
我不知道如果 @temp、joins、union... 可以在其他 select 中。
或者我唯一能做的就是创建一个带有第一个语句结果的 @Temp2 插入,然后与其他连接一起工作,其中...?
更新 1:
我也在尝试:
With cte (query returned columns)
as
(same query I was using to build my @temp as before)
(select ... from cte
join tblA
where...)
UNION
(select ... from cte
join tblB
where...)
但我在如何执行其他连接时卡在了同一点上,其中...总结果以上
Create @temp
Select ...inser...into @temp where ...
;with temp2 as
(
select ... from @temp Join tblA where ...
UNION
Select ... from @temp join tblB where ...
)
select ... from temp2
join ....
where....
其实不用临时也可以-table:
WITH myCTE [ ( column_name [,...n] ) ]
AS
( here you define your query )
然后您只需执行 Select 但使用 CTE
Select ... from myCTE
join ....
where....
关于 CTE 你可以阅读 Here 更新后
Select fields from myCTE join table1
Union
Select fields from myCTE join table2
查询中没有括号