我怎么能将此列中的负值替换为0

Posted 2023-02-23

SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]) AS DAmount

我怎么能在我试过的这一列中用0替换负值

select sUM(IF ([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]  < 0, 0, X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)] )) as DAmount

答案

你可以使用案例

select sum(case when [X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)] >0 
  then [X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]  end ) as DAmount

另一答案

使用case表达式：

(CASE WHEN SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]) > 0
      THEN SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)])
      ELSE 0
 END) AS DAmount

另一答案

用例何时

select case when SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)])<0 then 0 else SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]) end
  AS DAmount

另一答案

我注意到case语句有多个答案，但还有另一个选项可能会让你感兴趣（使用where子句）。

Select SUM([X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]) AS DAmount
FROM Table
Where [X Limited$Detailed Cust_ Ledg_ Entry].[Amount (LCY)]>0