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Question

您好我正在尝试执行下面的查询，并且我继续在子查询求和行上获得“表达式中没有聚合函数”错误。有什么方法可以做到这一点吗？

SELECT ID, 
    DateColumn, 
    Contamination, 
    BrokenGlass, 
    OtherReasons, 
    SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons) AS Total, 
    SUM(Contamination) / Total AS Expr1,
    (SELECT SUM(Contamination)/ SUM(SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))
     FROM tbltest T2
     WHERE T2.ID <= T2.ID) AS RunningSum
FROM tbltest
GROUP BY ID, DateColumn, Contamination, BrokenGlass, OtherReasons

Answer 1

我猜您正在使用基于Expr1的MS-Access，请尝试以下操作。替换查询中的Total别名用法，但您不能SUM(SUM())：

SELECT ID, 
    DateColumn, 
    Contamination, 
    BrokenGlass, 
    OtherReasons, 
    SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons) AS Total, 
    SUM(Contamination) / (SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons)) AS Expr1,
    (SELECT SUM(Contamination)/ (SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))
     FROM tbltest T2
     WHERE T2.ID <= tbltest.ID) AS RunningSum  -- I think you want T2.ID <= tbltest.ID not T2.ID <= T2.ID
FROM tbltest
GROUP BY ID, DateColumn, Contamination, BrokenGlass, OtherReasons

Answer 2

将sum(sum())更改为仅使用加法运算符作为结果总和：

--SUM(SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons)) 
(SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))

此外，请勿尝试在同一select子句中引用别名。使用子查询/派生表或只重复所需的“总计”计算。

--SUM(Contamination) / Total AS Expr1
SUM(Contamination) / (SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))

Answer 3

SELECT ID,  
    DateColumn,  
    Contamination,  
    BrokenGlass,  
    OtherReasons,  
    SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons) AS Total,  
    SUM(Contamination) / Total AS Expr1, 

    /* CHANGED THIS LINE */
    (SELECT SUM(Contamination)/ (SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))
     FROM tbltest T2 
     WHERE T2.ID <= T2.ID) AS RunningSum 

FROM tbltest 
GROUP BY ID, DateColumn, Contamination, BrokenGlass, OtherReasons

被修改

结果不正确是一个完全不同于最初问题的问题，我将不得不在黑暗中采取刺，因为我对你的项目一无所知，但是你去了，也许它可以得到你是从正确的方向开始的。

SELECT ID,
    DateColumn,
    Contamination,
    BrokenGlass,
    OtherReasons,
    SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons) AS Total,
    SUM(Contamination) / Total AS Expr1,
    (
         SELECT SUM(Contamination)/ (SUM(Contamination) + SUM(BrokenGlass) + SUM(OtherReasons))
         FROM tbltest T2 
         WHERE T2.ID <= tbltest.ID
    ) AS RunningSum
FROM tbltest
GROUP BY ID, DateColumn, Contamination, BrokenGlass, OtherReasons

表达式中不能有聚合函数

3 个答案:

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