SQL迭代查询 PL/SQL
with ORG_Tree(ObjectId,parentID) as ( select a.ObjectId,a.parentID from Ot_Organizationunit a where Name in ('江苏区域','浙江区域','苏州区域') Union ALL select b.ObjectId,b.parentID from Ot_Organizationunit b inner join ORG_Tree T on b.parentID=T.ObjectID ) select ouser.Name,ouser.code from OT_User ouser inner join ORG_Tree ot on ouser.parentid=ot.ObjectID
-- Get childs by parent id WITH Tree AS ( SELECT Id,ParentId FROM dbo.Node P WHERE P.Id = 21 -- parent id UNION ALL SELECT C.Id,C.ParentId FROM dbo.Node C INNER JOIN Tree T ON C.ParentId = T.Id ) SELECT * FROM Tree -- Get parents by child id WITH Tree AS ( SELECT Id,ParentId FROM dbo.Node C WHERE C.Id = 57 -- child id UNION ALL SELECT P.Id,P.ParentId FROM dbo.Node P INNER JOIN Tree T ON P.Id = T.ParentId ) SELECT * FROM Tree