游标的使用

SET NOCOUNT ON
DECLARE @startip bigint
declare @addr nvarchar(50)
DECLARE @endip bigint
declare @detailaddr varchar(100)
declare @countnumber int
declare @cid int
set @countnumber=0
DECLARE publish_cursor CURSOR FOR
SELECT cast(rtrim(startip) as bigint),cast(rtrim(endip) as bigint),rtrim(addr),rtrim(detailaddr),id FROM t_ip
    OPEN publish_cursor

    FETCH NEXT FROM publish_cursor
    INTO @startip,@endip,@addr,@detailaddr,@cid

        WHILE @@FETCH_STATUS = 0
        BEGIN
        print @cid
            --修改记录
            update t_ip set ip1=@startip,ip2=@endip,addr1=@addr,addr2=@detailaddr where id=@cid
            --修改结束
            FETCH NEXT FROM publish_cursor into  @startip,@endip,@addr,@detailaddr,@cid
           
        END
    CLOSE publish_cursor
    DEALLOCATE publish_cursor
   
GO