Question

我一直在用这个敲打我的脑袋。

...基本上

where....
and PaymentType IN CASE WHEN @PmtType = 'B' THEN ('BizPay','PerPay')
                        WHEN @PmtType = 'Z' THEN ('BizPay')
                        WHEN @PmtType = 'P' THEN ('PerPay')
                        ELSE NULL END

是我之后的事。我已经尝试重新安排CASE，将它放在括号中，在这里和谷歌，我只是没有让它工作。任何帮助都非常适合。未来的感谢。

Answer 1

你可以这样使用

   and PaymentType =CASE WHEN @PmtType = 'B' THEN 
        CASE WHEN PaymentType IN ('BizPay','PerPay') THEN PaymentType ELSE '-1' END
                    WHEN @PmtType = 'Z' THEN
                      CASE WHEN PaymentType IN  ('BizPay') THEN PaymentType ELSE '-1' END                        
                    WHEN @PmtType = 'P' THEN  
          CASE WHEN PaymentType IN  ('PerPay') THEN PaymentType ELSE '-1' END
                    ELSE NULL END

Answer 2

对那里有人想知道这是我的解决方案

AND  (@PmtType = 'B' and PaymentType in ('BizPay','PerPay'))
          or (@PmtType = 'Z'  and PaymentType in ('BizPay'))
          or (@PmtType = 'P' and PaymentType in ('PerPay'))

带有参数的where子句中的case语句

2 个答案: