I have an [Err] 1241 - Operand should contain 1 column(s)

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伪装坚强ぢ
伪装坚强ぢ 2020-11-21 08:03

I want to get the total per column but my code produced this error:[Err] 1241 - Operand should contain 1 column(s). Any help to simply the code will be appreciated.



        
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