Sql server 2008 r2 游标未更新我的列

我正在使用游标更新我的空列，但它没有更新

Declare @Itemcode as varchar(30)
Declare @SLV as varchar(20)
declare cursor1 cursor for 
Select Itemcode ,U_SLV from  oitm_Clone where sapitem is null and u_slv is null
open cursor1 
  fetch next FROM cursor1 INTO @Itemcode ,@SLV
   WHILE @@FETCH_STATUS = 0
   begin
   if @SLV is null
   begin
   declare @sql1 as varchar(max)        
          set @sql1 = 'Update [dbo].oitm_Clone set sapitem ='''+ @Itemcode +''' where ItemCode='''+ @Itemcode +''' and U_SLV ='''+ @SLV +''''
          print @sql1
          execute (@sql1)
   end
    FETCH NEXT FROM cursor1 INTO @Itemcode ,@SLV
   end
    CLOSE cursor1
DEALLOCATE cursor1

试着用这个

WHILE @@FETCH_STATUS <> -1 

希望对你有帮助

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关于

我认为您不需要光标来执行此更新。尝试这个简单的更新，它具有与游标相同的逻辑，并大大提高了性能

Update [dbo].oitm_Clone 
Set sapitem = itemcode
Where sapitem is null and u_slv is null

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这是正确的吗<代码>sapitem=''+@Itemcode+''

Update [dbo].oitm_Clone 
Set sapitem = itemcode
Where sapitem is null and u_slv is null