sql server的update select语句

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sql server的update select语句:


 UPDATE cb_Cost SET    TargetCost=temp.TargetCost FROM   (         SELECT ISNULL(cb_CostSBHS.SJZXSH_SaleCost,0)*ISNULL(p_Project.SaleArea,0) AS TargetCost,                CostCode,                cb_CostSBHS.ProjGUID,                cb_CostSBHS.ProjCode         FROM   cb_CostSBHS         LEFT JOIN p_Project         ON     dbo.cb_CostSBHS.ProjGUID=p_Project.ProjGUID        ) temp WHERE  cb_Cost.CostCode=temp.CostCode AND cb_Cost.ProjectCode=temp.ProjCode AND cb_Cost.CostType='项目成本' AND temp.ProjCode='sz01.003.1dddddd'




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