複製新增樹狀資料 ParentID也需要更新

create table treeship(

[id] uniqueidentifier primary key not null,

[name] [nvarchar](50) null,

[remark] [nvarchar](500) null,

[parentid] uniqueidentifier not null)go

insert into treeship(id,name,remark,parentid) values ('47b9af56-32d8-4561-8096-15d832c47b26','上海一中','源資料','00000000-0000-0000-0000-000000000000')

insert into treeship(id,name,remark,parentid) values ('64f41586-449a-464b-bb48-ff13fbc492bc','上海二中','源資料','00000000-0000-0000-0000-000000000000')

insert into treeship(id,name,remark,parentid) values (newid(),'上海三中','源資料','00000000-0000-0000-0000-000000000000')

insert into treeship(id,name,remark,parentid) values (newid(),'上海一中一班','源資料','47b9af56-32d8-4561-8096-15d832c47b26')

insert into treeship(id,name,remark,parentid) values (newid(),'上海一中二班','源資料','47b9af56-32d8-4561-8096-15d832c47b26')

insert into treeship(id,name,remark,parentid) values (newid(),'上海一中三班','源資料','47b9af56-32d8-4561-8096-15d832c47b26')

insert into treeship(id,name,remark,parentid) values (newid(),'上海二中一班','源資料','64f41586-449a-464b-bb48-ff13fbc492bc')

insert into treeship(id,name,remark,parentid) values (newid(),'上海二中二班','源資料','64f41586-449a-464b-bb48-ff13fbc492bc')

godeclare @treetype nvarchar(20)

set @treetype = '新資料'

begin

--建立乙個臨時表，記錄id的變化

select id as fromid,newid() as toid into #temp from treeship where remark ='源資料'

--插入相應的資料

insert into treeship(id,name,remark,parentid)

select m1.toid,a.name,@treetype,isnull(m2.toid,'00000000-0000-0000-0000-000000000000')

from treeship a

inner join #temp m1 on a.id = m1.fromid

left join #temp m2 on a.parentid = m2.fromid

drop table #temp

endgo

select * from treeship order by remark ,parentid,name

--哥哥們，若是覺得好就給個好評呀，寫的很辛苦的。