SQL SERVER如何更新存在于其他表

表中的所有行我有这个UPDATE句子更新行，如果存在这样一个部门的每一行，每一行都有不同幅度/ HRSQL SERVER如何更新存在于其他表

UPDATE CP_ValueStream_Data 
     SET 
     CP_ValueStream_Data.W1 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W1 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate AS FLOAT),2)), 
     CP_ValueStream_Data.W2 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W2 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W3 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W3 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W4 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W4 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W5 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W5 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W6 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W6 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W7 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W7 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W8 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W8 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W9 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W9 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W10 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W10 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W11 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W11 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W12 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W12 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     CP_ValueStream_Data.W13 = (SELECT ROUND(CAST((SELECT [CP_Demand_G&PS].W13 FROM [CP_Demand_G&PS]) AS FLOAT)/CAST(Rate_Hr AS FLOAT),2)), 
     Active = 1 
     FROM 
      [CP_Demand_G&PS] 
      INNER JOIN CP_ValueStream_Data 
     ON [CP_Demand_G&PS].RowLabels = CP_ValueStream_Data.Material

但是，当我执行查询时，返回一个错误

子查询返回的值超过1。当子查询遵循=，！=，<，< =，>，> =或当子查询用作表达式时，这是不允许的。

来源

2017-06-20 Aldo M. Capitanachi

你不应该使用子查询你的设置部位，当你已经加入了表。只是'= ROUND（CAST（[CP_Demand_G＆PS] .W ... AS FLOAT）/ ...）' – ZLK

你不需要的子查询：

UPDATE CP_ValueStream_Data 
    SET CP_ValueStream_Data.W1 = ROUND(CAST(d.W1 AS FLOAT)/CAST(Rate AS FLOAT), 2), 
     . . . 
     Active = 1 
     FROM [CP_Demand_G&PS] d INNER JOIN 
      CP_ValueStream_Data v 
      ON d.RowLabels = v.Material;

来源

2017-06-20 01:33:52

SQL SERVER如何更新存在于其他表

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