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Editorial Team
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Asked: 2026-06-09T06:54:19+00:00

Hi I am trying to do the qry below and I keep getting Cannot

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Hi I am trying to do the qry below and I keep getting “Cannot have aggregate function in expression” error on the subqry sum line. Any way to make this work?

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
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1 Answer

  1. Editorial Team
    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

    Edited

    The results being incorrect is a whole different problem than what was originally asked and I’m going to have to take a stab in the dark at this because I know nothing about your project, but here you go and maybe it can get you started in the right direction.

    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
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