表一
org_code org_name
101 最大级
101001 一级_东南
101001001 一级_东南_A
101001002 一级_东南_B
101002 二级_西
101003 二级_北表二
org_code text
101001 小张
101001 小王
101001001 小李
101001002 小吴
101002 小邓我想想查询出来得到一个表以org_code生成一个树型结构的表,请高手帮忙一下
org_code org_name
101 最大级
101001 一级_东南
101001001 一级_东南_A
101001002 一级_东南_B
101002 二级_西
101003 二级_北表二
org_code text
101001 小张
101001 小王
101001001 小李
101001002 小吴
101002 小邓我想想查询出来得到一个表以org_code生成一个树型结构的表,请高手帮忙一下
1 101 最大级
2 1 101001 小张
3 2 101001001 小李
4 2 101001002 小吴
5 1 101002 小邓
6 1 101003
---------------------------------------------------------------------------- Author : htl258(Tony)-- Date : 2010-04-23 02:37:28-- Version:Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (Intel X86) -- Jul 9 2008 14:43:34 -- Copyright (c) 1988-2008 Microsoft Corporation-- Developer Edition on Windows NT 5.1 <X86> (Build 2600: Service Pack 3)-- Subject: BOM按节点排序应用实例-------------------------------------------------------------------------- --实例1:--> 生成测试数据表:tb IF NOT OBJECT_ID('[tb]') IS NULL DROP TABLE [tb]GOCREATE TABLE [tb]([id] INT,[code] NVARCHAR(10),[pid] INT,[name] NVARCHAR(10))INSERT [tb]SELECT 1,'01',0,N'服装' UNION ALLSELECT 2,'01',1,N'男装' UNION ALLSELECT 3,'01',2,N'西装' UNION ALLSELECT 4,'01',3,N'全毛' UNION ALLSELECT 5,'02',3,N'化纤' UNION ALLSELECT 6,'02',2,N'休闲装' UNION ALLSELECT 7,'02',1,N'女装' UNION ALLSELECT 8,'01',7,N'套装' UNION ALLSELECT 9,'02',7,N'职业装' UNION ALLSELECT 10,'03',7,N'休闲装' UNION ALLSELECT 11,'04',7,N'西装' UNION ALLSELECT 12,'01',11,N'全毛' UNION ALLSELECT 13,'02',11,N'化纤' UNION ALLSELECT 14,'05',7,N'休闲装'GO--SELECT * FROM [tb] -->SQL查询如下: ;WITH T AS( SELECT CAST(CODE AS VARCHAR(20)) AS CODE,*, CAST(ID AS VARBINARY(MAX)) AS px FROM tb AS A WHERE NOT EXISTS(SELECT * FROM tb WHERE id=A.pid) UNION ALL SELECT CAST(B.CODE+A.CODE AS VARCHAR(20)),A.*, CAST(B.px+CAST(A.ID AS VARBINARY) AS VARBINARY(MAX)) FROM tb AS A JOIN T AS B ON A.pid=B.id)SELECT Code,Name FROM T ORDER BY px/*Code Name-------------------- ----------01 服装0101 男装010101 西装01010101 全毛01010102 化纤010102 休闲装0102 女装010201 套装010202 职业装010203 休闲装010204 西装01020401 全毛01020402 化纤010205 休闲装 (14 行受影响)*/ --实例2:--> 生成测试数据表:tbIF NOT OBJECT_ID('[tb]') IS NULL
DROP TABLE [tb]
GO
CREATE TABLE [tb]([id] INT,[parentid] INT,[categoryname] NVARCHAR(10))
INSERT [tb]
SELECT 1,0,'test1' UNION ALL
SELECT 2,0,'test2' UNION ALL
SELECT 3,1,'test1.1' UNION ALL
SELECT 4,2,'test2.1' UNION ALL
SELECT 5,3,'test1.1.1' UNION ALL
SELECT 6,1,'test1.2'
GO
--SELECT * FROM [tb]-->SQL查询如下:
;WITH T AS
(
SELECT *,CAST(ID AS VARBINARY(MAX)) AS px
FROM tb AS A
WHERE NOT EXISTS(SELECT * FROM tb WHERE id=A.[parentid])
UNION ALL
SELECT A.*,CAST(B.px+CAST(A.ID AS VARBINARY) AS VARBINARY(MAX))
FROM tb AS A
JOIN T AS B
ON A.[parentid]=B.id
)
SELECT [id],[parentid],[categoryname] FROM T
ORDER BY px
/*
id parentid categoryname
----------- ----------- ------------
1 0 test1
3 1 test1.1
5 3 test1.1.1
6 1 test1.2
2 0 test2
4 2 test2.1(6 行受影响)
*/本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/htl258/archive/2010/04/23/5518166.aspx