更新从另一列的重复值

发票

+++++++++++++++++++++++++++ 
+ InvoiceId + InvoiceDate + 
+++++++++++++++++++++++++++ 
+ int  +  int  + 
+++++++++++++++++++++++++++

InvoiceLine

++++++++++++++++++++++++++++++++++++++++++++ 
+ InvoiceLineId + InvoiceId + InvoiceDate + 
++++++++++++++++++++++++++++++++++++++++++++ 
+ int  + int  + int  + 
++++++++++++++++++++++++++++++++++++++++++++

我最近添加的最后一个（InvoiceDate）列于表，我会喜欢使用“发票”表中的相应值更新其值。对于两个表中都匹配的每个InvoiceId，应将InvoiceDate添加到InvoiceLine中。

如果需要更多的投入，请不要犹豫，问问。

来源

2010-12-05 Eton B.

Update InvoiceLine 
Set InvoiceDate = Invoice.InvoiceDate 
From Invoice inner join InvoiceLine on Invoice.InvoiceId = InvoiceLine.InvoiceId

来源

2010-12-05 18:47:29

也许是这样的？

update detail 
    set invoicedate = summary.invoicedate 
    from invoiceline detail 
     inner join invoice summary 
      on summary.invoiceid = detail.invoiceid

来源

2010-12-05 18:47:17

更新从另一列的重复值

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