SQL2005實現表記錄遞迴查詢

if not object_id('tb') is null

drop table tb

gocreate table tb([id] int,[parid] int)

insert tb

select 1,0 union all

select 2,0 union all

select 3,0 union all

select 4,1 union all

select 5,4 union all

select 6,3 union all

select 7,6 union all

select 8,4 union all

select 9,1 union all

select 10,9

go--select * from tb

-->sql查詢如下:

with t as

(select *,id grp1,cast(id as nvarchar(max)) grp2 from tb where parid=0

union all

select tb.*,t.grp1,t.grp2+ltrim(tb.id) from tb,t where tb.parid=t.id

)select * from t order by grp1,grp2

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