标签：order desc ict dict group by parent serve style mac
自上向下的查询方法，查询出自身以及所有的子孙数据：
--自上往下搜索 ;with maco as ( select * from ty_Dictionary where id =21 union all select t.* from ty_Dictionary t,maco m where t.ParentID=m.ID ) select distinct * from maco order by id desc
自下向上查询，查询出自身以及所有的直系祖先：
--自下往上搜索 ;with maco as ( select * from ty_Dictionary where id=23 union all select t.* from ty_Dictionary t,maco m where t.ID=m.ParentID ) select * from maco order by id
删除自身以及所有的子孙数据：
;with maco as ( select ID,ParentID from ty_Dictionary where ID=21 union all select t.ID,t.ParentID from ty_Dictionary t,maco m where t.ParentID=m.ID ) delete from ty_Dictionary where ID in( select ID from maco group by ID)
标签：order desc ict dict group by parent serve style mac
原文地址：http://www.cnblogs.com/williamwsj/p/7730071.html
