如何写这个SQL语句更新在哪里？

Update [E1$] 
set [LR/Virtual/MW]='LR' , 
[Vir No#]=null 
where [Conc] , [Vir No#] 
    in ( 
    SELECT [Conc] , [Vir No#] 
    FROM [E1$] 
    where [Vir No#] is not null 
    group by Conc , [Vir No#] 
    having Count(LR)<28 
)

来源

2012-08-08 Ahmed Darwish

尝试：

Update E set [LR/Virtual/MW]='LR' , [Vir No#]=null 
    from [E1$] E join 
     (SELECT [Conc] , [Vir No#] 
     FROM [E1$] where [Vir No#] is not null 
     group by Conc ,[Vir No#] 
     having Count(LR)<28 
     ) a 
on e.[Conc]=a.[Conc] 
    and e.[Vir No#]=a.[Vir No#]

来源

2012-08-08 12:55:00

我收到异常> System.Data.OleDb.OleDbException（0x80040E14）：语法错误从[E1（缺少运算符）查询表达式“空$] E join（SELECT [Conc]，[Vir No＃] FROM [E1 $]其中[Vir No＃]不是空组by Conc，[Vir No＃]有Count（LR）<28）a on。 [Conc] = a。[Conc]和e。[Vir No＃] = a。[Vir No＃]'。在System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling（OleDbHResult小时）在System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult（tagDBPARAMS dbParams，对象及的ExecuteReuslt） – 2012-08-08 13:38:53

@AhmedDarwish：您是否获得在SQL服务器或前端应用程序中的错误？ – 2012-08-08 13:40:55

前端......当我在SQL管理工作室中运行它时，它正常运行 – 2012-08-08 13:43:48

尝试在where子句中使用围绕([conc], [Vir No#])的括号。

Update [E1$] 
set [LR/Virtual/MW]='LR' , 
[Vir No#]=null 
where ([Conc] , [Vir No#]) in 
( 
    SELECT [Conc] , [Vir No#] 
    FROM [E1$] 
    where [Vir No#] is not null 
    group by Conc , [Vir No#] 
    having Count(LR)<28 
)

来源

2012-08-08 12:54:42

Update [E1$] 
set [LR/Virtual/MW]='LR',[Vir No#]=null 
where exists( 
    SELECT [Conc] , [Vir No#] 
    FROM [E1$] e2 
    where [Vir No#] is not null and [E1$].[Conc]=e2.[Conc] and [E1$].[Vir No#]=e2.[Vir No#] 
    group by Conc , [Vir No#] 
    having Count(LR)<28 
)

来源

2012-08-08 12:57:20 AnandPhadke

如何写这个SQL语句更新在哪里？

回答

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