oracle 菜单树查询

SELECT
       T.Menu_Id,--子id
       T.Parent_Menu_Id,--父id
       sys_connect_by_path (t.Parent_Menu_Id, '/') path,       
       level,           --级别
       lpad(' ',(level-1)*8) || menu_name,--菜单项名称(级别显示)
       t.busi_kind,       
       t.menu_url,--当前菜单的url
        t.func_id,
       t.is_used,
       t.expire_date
  FROM sys_menu T
  where domain_id=5
START WITH parent_menu_id = 50101 --表示从哪级节点开始
CONNECT BY PRIOR T.Menu_Id = T.Parent_Menu_Id