用INNER JOIN SQL Server替換

Question

FROM   
    DW_Stage.PreStage.FilteredCoupon  c
INNER JOIN 
    DW.Linkage l WITH (nolock)
          REPLACE([l.CouponNumber], '/', '') ON (c.CouponSeqNbr = l.CouponNumber 
                                             AND c.PNRCreateDate = l.PNRCreateDate 
                                             AND c.PNRLocator = l.PNRLocator 
                                             AND c.PrimaryDocNbr = l.PrimaryDocNbr)

因此，在CouponNumber中有兩個記錄有一個“ /”，這導致我的SSIS包失敗。 如果我使用此REPLACE函數，這將是它的最佳用法？ 還是應該在ON部分使用REPLACE功能？ 謝謝

Answer 1

您希望replace()在on一部分。 您的語法沒有意義。 但您也想刪除方括號：

FROM DW_Stage.PreStage.FilteredCoupon c INNER JOIN
     DW.Linkage l
     ON c.CouponSeqNbr = REPLACE(l.CouponNumber, '/', '') AND
        c.PNRCreateDate = l.PNRCreateDate AND
        c.PNRLocator = l.PNRLocator AND
        c.PrimaryDocNbr = l.PrimaryDocNbr 

ON條件前的括號也不會增加任何值。

Answer 2

FROM   
          DW_Stage.PreStage.FilteredCoupon  c
          INNER JOIN 
          DW.Linkage l WITH (nolock)


              ON 
          (     
         c.CouponSeqNbr = REPLACE([l.CouponNumber], '/', '')
        AND c.PNRCreateDate = l.PNRCreateDate 
        AND c.PNRLocator = l.PNRLocator 
        AND c.PrimaryDocNbr = l.PrimaryDocNbr )