SQL子查询错误（接近）

我的子查询给出了一个错误：

Msg 102，级别15，状态1，第17行“'）附近的语法不正确。

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您缺少子查询的别名。请尝试此操作

SELECT SalesArea, Branch, Volume
from
(select 
br.SalesArea as SalesArea
,br.Branch as Branch
, sum(a.Volume) as Volume
FROM dbo.vDetail a with (nolock) 
LEFT JOIN
dbo.vBranch AS br WITH (nolock) 
ON a.Branch = br.Branch
group by a.Volume, br.SalesArea, br.Branch) as x

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您需要派生表的别名

SELECT SalesArea, Branch, Volume 
from 
(select  
br.SalesArea as SalesArea 
,br.Branch as Branch 
, sum(a.Volume) as Volume 
FROM dbo.vDetail a with (nolock)  
LEFT JOIN 
dbo.vBranch AS br WITH (nolock)  
ON a.Branch = br.Branch 
group by a.Volume, br.SalesArea, br.Branch) as T

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每个select from子查询都需要一个别名。只需在末尾添加一个“X”，它将成为表的名称

不正常：

select * from (
   select * from your_table
) 

好:

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您可能需要为子查询指定一个别名。）奎里。

select * from (
   select * from your_table
) 

select * from (
   select * from your_table
) X