SQL用 存储过程做下面的内容

有一表staff   如下：
id   managerid
1    null
2     1
3     2
4     1
5     4
6     2
7     6
8     1
9     1


当运行存储过程 得到一新表 结构如下
ID   Path
1    1
2    1，2
3    1，2，3
4    1，4
5    1，4，5
6    1，2，6
7    1，2，6，7
8    1，8
9    1，9



高手帮帮忙~！

[ 本帖最后由 yujietim 于 2008-8-5 16:07 编辑 ]

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。。怎么没人额- - #

-----建表
create table staff(id int,managerid int)
create table newtable(ID int,[Path] varchar(100))
----------所有id
create proc allid
as
begin

declare @nid int
declare cursor_id cursor for select id from staff
open cursor_id
fetch next from cursor_id into @nid
while(@@fetch_status=0)
begin

exec ppp @nid,@nid

fetch next from cursor_id into @nid
end
close cursor_id
deallocate  cursro_id

end



----------------单个id执行
create proc ppp
(@id int,@child_id int)
as
begin
  declare @managerid int
  select @managerid=managerid from staff where id=@child_id
  
  if not exists(select 1 from newtable where ID=@id)
  begin
  select 1
  insert into newtable(ID,[Path])
  values(@id,cast(@id as varchar))
  end

  if(@managerid is null)
  select 2
  else
  begin
  select 3
  update newtable set [Path]=[Path]+','+cast(@managerid as varchar) where ID=@id
  exec ppp @id,@managerid
  end
end

-----测试，执行存储过程allid即可