游标使用

USE [ceshi0827]

GO

/****** Object:  StoredProcedure [dbo].[pro_cursor111]    Script Date: 09/02/2015 18:21:28 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

ALTER proc [dbo].[pro_cursor111]

as

begin

--声明一个全局游标

declare mycursor cursor for 

select sid from score 

--打开游标

open mycursor

--声明一个变量

declare @sid int

--循环移动

fetch next from mycursor into @sid

while(@@fetch_status=0)

  begin

    update score set score=score+10

where sid=@sid

    fetch next from mycursor into @sid

  end

close mycursor

deallocate mycursor

end