復(fù)制代碼 代碼如下:

--由父項(xiàng)遞歸下級(jí)
with cte(id,parentid,text)
as
(--父項(xiàng)
select id,parentid,text from treeview where parentid = 450
union all
--遞歸結(jié)果集中的下級(jí)
select t.id,t.parentid,t.text from treeview as t
inner join cte as c on t.parentid = c.id
)
select id,parentid,text from cte

---------------------

--由子級(jí)遞歸父項(xiàng)
with cte(id,parentid,text)
as
(--下級(jí)父項(xiàng)
select id,parentid,text from treeview where id = 450
union all
--遞歸結(jié)果集中的父項(xiàng)
select t.id,t.parentid,t.text from treeview as t
inner join cte as c on t.id = c.parentid
)
select id,parentid,text from cte