更新語句中使用別名

Question

這是不被編譯我的更新語句不編譯：

Update Documents d 
     Set 
      DocumentDate = 1, 
      LastStatusChangedDateTime = (
       Select Top 1 DATEADD(ss,1,StatusChangedDateTime) 
        From [dbo].[DocumentStatusesHistory] dsh 
         Where dsh.DocumentID = d.DocumentID 
      ) 
      Where DocumentID In 
      (
       Select Data From dbo.Split(@DocumentIDs,',') 
      ) 

我無法使用d別名。我怎樣才能解決這個問題？

Answer 1

這個怎麼樣？

Update Documents 
     Set 
      DocumentDate = 1, 
      LastStatusChangedDateTime = (
       Select Top 1 DATEADD(ss,1,StatusChangedDateTime) 
        From [dbo].[DocumentStatusesHistory] dsh 
         Where dsh.DocumentID = d.DocumentID 
      ) 
     From Documents d 
      Where DocumentID In 
      (
       Select Data From dbo.Split(@DocumentIDs,',') 
      ) 

Answer 2

添加FROM條款：

Update d 
Set 
DocumentDate = 1, 
LastStatusChangedDateTime = (
       Select Top 1 DATEADD(ss,1,StatusChangedDateTime) 
        From [dbo].[DocumentStatusesHistory] dsh 
         Where dsh.DocumentID = d.DocumentID 
) 
FROM Documents AS d 
... 

Answer 3

試試這個：

UPDATE d 
SET  d.DocumentDate = 1 , 
     d.LastStatusChangedDateTime = (SELECT TOP 1 
              DATEADD(ss, 1, 
                StatusChangedDateTime) 
             FROM [dbo].[DocumentStatusesHistory] dsh 
             WHERE dsh.DocumentID = d.DocumentID 
           ) 

從原稿D WHERE d.DocumentID IN（SELECT數據 FROM dbo.Split（@DocumentIDs， '，'））