--N要连继，
select top 8000 identity(int,1,1) as N into numtab from
(select top 100 id=1 from sysobjects) as a,
(select top 100 id=1 from sysobjects) as b,
(select top 100 id=1 from sysobjects) as c---------------------------------------------------------------------
declare @a table (id int,string varchar(8000))
insert @a select 1 ,'a,b,c,sd,dfsdfg'
union select 2, 'a,n,sdf,we,t'
union select 3, 's,df,df'select a.*,b.*,id,substring(','+string+',',N+1,charindex(',',','+string+',',N+1)-(N+1))
from @a a,numtab b
where substring(','+string+',',N,8000) like ',_%'
order by id,N
解决方案 »
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