sqlserver 游标的简单示例

编程学习 2021-07-05 13:42www.dzhlxh.cn编程入门
比较简单的例子,学习sqlserver游标
Declare @Id varchar(20)
Declare @Name varchar(20)
Declare Cur Cursor For
select substring(id,0,7) as id,name from temp1
Open Cur
Fetch next From Cur Into @Id,@Name
While @@fetch_status=0
Begin
Update temp Set [c3]=@Name where [id] like @Id+'%'
Fetch Next From Cur Into @Id,@Name
End
Close Cur
Deallocate Cur

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