一個SQL查詢与更新問題，立即解決，立即給分解决思路

一個SQL查詢与更新問題，立即解決，立即給分
表A：

KID OPRNUM OPRNUMNEXT
K0001 100 200
K0001 200 201
K0001 201 300
K0001 300 400
K0001 400 0
K0003 400 0
K0003 200 201
K0003 100 200
K0003 300 400
K0003 201 300
K0002 100 200
K0002 200 300
K0002 210 400
K0002 300 210
K0002 400 0

这里面的OPRNUMNEXT是要拿OPRNUM下一条记录的号码才是正确的
(按照OPNUM号码从小到大排，比如说K0003的OPNUM为200的下一个OPNUM号是201)。
K0001,K0003是正确的，K0002明显示错误的,就是把这一种错误的数据
找出来并且更新它们，更新效果如下：

KID OPRNUM OPRNUMNEXT
K0002 100 200
K0002 200 210
K0002 210 300
K0002 300 400
K0002 400 0

这一种SQL语句怎么样写?，请高手指点

------解决方案--------------------

SQL code


--适用于2005-2008+
--> 测试数据: @表A
declare @表A table (KID varchar(5),OPRNUM int,OPRNUMNEXT int)
insert into @表A
select 'K0001',100,200 union all
select 'K0001',200,201 union all
select 'K0001',201,300 union all
select 'K0001',300,400 union all
select 'K0001',400,0 union all
select 'K0003',400,0 union all
select 'K0003',200,201 union all
select 'K0003',100,200 union all
select 'K0003',300,400 union all
select 'K0003',201,300 union all
select 'K0002',100,200 union all
select 'K0002',200,300 union all
select 'K0002',210,400 union all
select 'K0002',300,210 union all
select 'K0002',400,0

;with maco as
(
select row_number() over (partition by KID order by OPRNUM) as rid, *  from @表A
)

update @表A set OPRNUMNEXT=c.OPRNUMNEXT
from @表A a left join (Select a.rid,a.KID,a.OPRNUM,isnull(b.OPRNUM,0) as OPRNUMNEXT  from maco a 
left join maco b on a.KID=b.KID and a.rid=b.rid-1)c
on a.KID=c.KID and a.OPRNUM=c.OPRNUM

select * from @表A order by KID,OPRNUM
/*
KID   OPRNUM      OPRNUMNEXT
----- ----------- -----------
K0001 100         200
K0001 200         201
K0001 201         300
K0001 300         400
K0001 400         0
K0002 100         200
K0002 200         210
K0002 210         300
K0002 300         400
K0002 400         0
K0003 100         200
K0003 200         201
K0003 201         300
K0003 300         400
K0003 400         0
*/

一個SQL查詢与更新問題，立即解決，立即給分解决思路

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