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create table #EnterPrise
(
Department nvarchar(50),--部门名称
ParentDept nvarchar(50),--上级部门
DepartManage nvarchar(30)--部门经理
)
insert into #EnterPrise select '技术部','总经办','Tom'
insert into #EnterPrise select '商务部','总经办','Jeffry'
insert into #EnterPrise select '商务一部','商务部','ViVi'
insert into #EnterPrise select '商务二部','商务部','Peter'
insert into #EnterPrise select '程序组','技术部','GiGi'
insert into #EnterPrise select '设计组','技术部','yoyo'
insert into #EnterPrise select '专项组','程序组','Yue'
insert into #EnterPrise select '总经办','','Boss'
--查询部门经理是Tom的下面的部门名称
;with hgo as
(
select *,0 as rank from #EnterPrise where DepartManage='Tom'
union all
select h.*,h1.rank+1 from #EnterPrise h join hgo h1 on h.ParentDept=h1.Department
)
select * from hgo
/*
Department ParentDept DepartManage rank
--------------- -------------------- ----------------------- -----------
技术部 总经办 Tom 0
程序组 技术部 GiGi 1
设计组 技术部 yoyo 1
专项组 程序组 Yue 2
*/
--查询部门经理是GiGi的上级部门名称
;with hgo as
(
select *,0 as rank from #EnterPrise where DepartManage='GiGi'
union all
select h.*,h1.rank+1 from #EnterPrise h join hgo h1 on h.Department=h1.ParentDept
)
select * from hgo
/*
Department ParentDept DepartManage rank
-------------------- ---------------------- ----------- -----------
程序组 技术部 GiGi 0
技术部 总经办 Tom 1
总经办 Boss 2
*/
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/ws_hgo/archive/2010/01/31/5274571.aspx
----------------------------------------------------------------
-- Author :fredrickhu(小F,向高手学习)
-- Date :2010-04-28 17:27:25
-- Version:
-- Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86)
-- Nov 24 2008 13:01:59
-- Copyright (c) 1988-2005 Microsoft Corporation
-- Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 3)
--
----------------------------------------------------------------
--> 测试数据:[tb]
if object_id('[tb]') is not null drop table [tb]
go
create table [tb]([Type] int,[Rtype] int)
insert [tb]
select 101,null union all
select 201,101 union all
select 301,201
--------------开始查询--------------------------
;with f as
(
select * from tb where [Type]=301
union all
select a.* from tb a join f b on a.[Type]=b.[Rtype]
)
select * from f where [type]<>301
----------------结果----------------------------
/* Type Rtype
----------- -----------
201 101
101 NULL
(2 行受影响)
*/