CREATE TABLE [dbo].[tbNode_List] (
[nlID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NOT NULL PRIMARY KEY,--公司编码
[OwnerNodeID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NULL , --公司名称
[nlName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL , --上级公司编码
[nlAddress] [varchar] (100) COLLATE Chinese_PRC_CI_AS NULL --地址
) ON [PRIMARY]
GO
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0001','0','某公司总部','北京')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0002','0001','西北营销中心','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0003','0001','北京公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0004','0003','北京海淀公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0005','0003','北京昌平公司','')
INSERT
-- 使用函数的方法：
--建立 演示环境
if object_id('tb_bookInfo') is not null drop table tb_bookInfo
go
create table tb_bookInfo(number int,name varchar(10),type int)
insert tb_bookInfo
select 1 ,'n1', 6 union all
select 2 ,'n2', 3
if object_id('tb_bookType') is not null drop table tb_bookType
go
create table tb_bookType(id int,typeName varchar(10),parentid int)
insert tb_bookType
select 1,'英语',0 union all
select 2,'生物',0 union all
select 3,'计算机',0 union all
select 4,'口语',1 union all
select 5,'听力',1 union all
select 6,'数据库',3 union all
select 7,'软件工程',3 union all
select 8,'SQL Server',6
select a.*,b.level from tb_bookInfo a,f_getC(3) b where a.type=b.id order by b.level
/*
number name type level
----------- ---------- ----------- -----------
2 n2 3 0
1 n1 6 1
（所影响的行数为 2 行）
*/
--查所有父结点
if object_id('f_getP') is not null drop function f_getP
go
create function f_getP(@id int)
returns @re table(id int,level int)
as
begin
declare @l int
set @l=0
insert @re select @id,@l
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.parentid,@l from tb_bookType a,@re b
where a.id=b.id and b.level=@l-1 and a.parentid<>0
end
update @re set level=@l-level
return
end
go
--查所有子结点
if object_id('f_getC') is not null drop function f_getC
go
create function f_getC(@id int)
returns @re table(id int,level int)
as
begin
declare @l int
set @l=0
insert @re select @id,@l
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.id,@l from tb_bookType as a,@re as b
where b.id=a.parentid and b.level=@l-1
end
return
end
go
--查所有父子结点
if object_id('f_getAll') is not null drop function f_getAll
go
create function f_getAll(@id int)
returns @re table(id int,level int)
as
begin
declare @l int
set @l=0
insert @re select @id,@l
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.parentid,@l from tb_bookType a,@re b
where a.id=b.id and b.level=@l-1 and a.parentid<>0
end
update @re set level=@l-level
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.id,@l from tb_bookType as a,@re as b
where b.id=a.parentid and b.level=@l-1
end
return
end
go
--删除演示
drop table tb_bookInfo
drop table tb_bookType
drop function f_getP
drop function f_getC
drop function f_getAll
GO
--sqlserver2005的新方法
-- 建立演示环境
IF OBJECT_ID('[Dept]') IS NOT NULL
DROP TABLE [Dept]
GO
CREATE TABLE Dept(
id int PRIMARY KEY,
parent_id int,
name nvarchar(20))
INSERT Dept
SELECT 1, 0, N'财务部' UNION ALL
SELECT 2, 0, N'行政部' UNION ALL
SELECT 3, 0, N'业务部' UNION ALL
SELECT 4, 0, N'业务部' UNION ALL
SELECT 5, 4, N'销售部' UNION ALL
SELECT 6, 4, N'MIS' UNION ALL
SELECT 7, 6, N'UI' UNION ALL
SELECT 8, 6, N'软件开发' UNION ALL
SELECT 9, 8, N'内部开发'
GO
--1、父-〉子
-- 查询指定部门下面的所有部门
DECLARE @Dept_name nvarchar(20)
SET @Dept_name = N'MIS'
;WITH
DEPTS AS(
-- 定位点成员
SELECT * FROM Dept WHERE name = @Dept_name
UNION ALL
-- 递归成员, 通过引用CTE自身与Dept基表JOIN实现递归
SELECT A.* FROM Dept A, DEPTS B WHERE A.parent_id = B.id
)
SELECT * FROM DEPTS
GO
--结果如下
/*
id parent_id name
----------- ----------- --------------------
6 4 MIS
7 6 UI
8 6 软件开发
9 8 内部开发
（所影响的行数为 4 行）
*/
--2、子-〉父
-- 查询指定部门下面的所有部门
DECLARE @Dept_name nvarchar(20)
SET @Dept_name = N'内部开发'
;WITH
DEPTS AS(
-- 定位点成员
SELECT * FROM Dept WHERE name = @Dept_name
--SELECT d.id,d.parent_id,d.name,convert(nvarchar(50),d.name) as parent FROM Dept where @Dept_name
UNION ALL
-- 递归成员, 通过引用CTE自身与Dept基表JOIN实现递归
SELECT a.* FROM Dept a, DEPTS b WHERE a.id = b.parent_id
)
SELECT * FROM DEPTS
GO
--结果如下
/*
id parent_id name
----------- ----------- --------------------
9 8 内部开发
8 6 软件开发
6 4 MIS
4 0 业务部
（所影响的行数为 4 行）
*/
-- 删除演示环境
DROP TABLE Dept
--查找上级
with cte as
(
select * from tbNode_List where nlID='0003'
union all
select a.* from tbNode_List a inner join cte b on a.nlID=b.OwnerNodeID
)
select * from cte where nlID<>'0003'
--查找下级
with cte as
(
select * from tbNode_List where nlID='0003'
union all
select a.* from tbNode_List a inner join cte b on a.OwnerNodeID=b.nlID
)
select * from cte where nlID<>'0003'
;WITH CTE AS (
SELECT nlID = '0003','本身' AS TYPE
UNION ALL
SELECT nlID,'下级' AS TYPE
FROM [dbo].[tbNode_List] AS A,CTE AS B
WHERE A.OwnerNodeID = B.nlID
AND B.TYPE IN ('本身','下级')
UNION ALL
SELECT OwnerNodeID AS nlID,'上级' AS TYPE
FROM [dbo].[tbNode_List] AS A,CTE AS B
WHERE A.nlID = B.nlID
AND B.TYPE IN ('本身','上级')
)
SELECT * FROM CTE
GO
if object_id('F_BOM','FN') is not null
drop function F_BOM
go
create function F_BOM(@nlID nvarchar(50))
returns nvarchar(1000)
as
begin
declare @s nvarchar(1000),@Name nvarchar(50),@i int
set @i=0
lab:
set @i=@i+1
set @Name =(select [OwnerNodeID] from tbNode_List where [nlID]=@nlID)
select @nlID=[OwnerNodeID] from tbNode_List where [nlID]=@nlID
if @Name is not NULL AND @Name<>'0'
begin
set @s=isnull(@s+',','')+@Name
goto lab
end
return @s
end
GO
SELECT dbo.f_BOM('0003')
/*
0001
*/
CREATE TABLE [dbo].[tbNode_List] (
[nlID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NOT NULL PRIMARY KEY,--公司编码
[OwnerNodeID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NULL , --公司名称
[nlName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL , --上级公司编码
[nlAddress] [varchar] (100) COLLATE Chinese_PRC_CI_AS NULL --地址
) ON [PRIMARY]
GO
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0001','0','某公司总部','北京')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0002','0001','西北营销中心','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0003','0001','北京公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0004','0003','北京海淀公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0005','0003','北京昌平公司','')
go
declare @nlID varchar(10)
set @nlID = '0003'
;with cte as
(
select nlID,ownerNodeID,'本级nlID' as TFlag from [tbNode_List] where nlID = @nlID
union all
select a.nlID,a.ownerNodeID,'下级nlID'
from [tbNode_List] a join cte as f on a.ownerNodeID = f.nlID
),cta as
(
select nlID,ownerNodeID,'本级nlID' as TFlag from [tbNode_List] where nlID = @nlID
union all
select a.nlID,a.ownerNodeID,'上级nlID'
from [tbNode_List] a join cta as f on f.ownerNodeID = a.nlID
where a.ownerNodeID is not null
)
select * from cte
union all
select * from cta
drop table [tbNode_List]
/********************
nlID ownerNodeID TFlag
---------- ----------- --------
0003 0001 本级nlID
0004 0003 下级nlID
0005 0003 下级nlID
0003 0001 本级nlID
0001 0 上级nlID
(5 行受影响)
select * from cte
union
select * from cta
/**************
nlID ownerNodeID TFlag
---------- ----------- --------
0001 0 上级nlID
0003 0001 本级nlID
0004 0003 下级nlID
0005 0003 下级nlID
(4 行受影响)
CREATE TABLE [dbo].[tbNode_List] (
[nlID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NOT NULL PRIMARY KEY,--公司编码
[OwnerNodeID] [varchar] (10) COLLATE Chinese_PRC_CI_AS NULL , --公司名称
[nlName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL , --上级公司编码
[nlAddress] [varchar] (100) COLLATE Chinese_PRC_CI_AS NULL --地址
) ON [PRIMARY]
GO
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0001','0','某公司总部','北京')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0002','0001','西北营销中心','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0003','0001','北京公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0004','0003','北京海淀公司','')
INSERT INTO tbNode_List(nlID,OwnerNodeID,nlName,nlAddress) VALUES('0005','0003','北京昌平公司','')
go
create function f_getP(@nlID varchar(10))
returns @re table(nlID varchar(10),lev int,ownerNodeID varchar(10),TFlag varchar(10))
as
begin
declare @l int
set @l=0
insert @re select nlID,@l,ownerNodeID,'本级nlID' from tbNode_List where nlID = @nlID
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.nlID,@l,a.ownerNodeID,'下级nlID'
from tbNode_List a,@re b
where a.ownerNodeID=b.nlID and b.lev=@l-1 and a.nlID is not null
end
update @re set lev=@l-lev
return
end
go
create function f_getC(@nlID varchar(10))
returns @re table(nlID varchar(10),lev int,ownerNodeID varchar(10),TFlag varchar(10))
as
begin
declare @l int
set @l=0
insert @re select nlID,@l,ownerNodeID,'本级nlID' from tbNode_List where nlID = @nlID
while @@rowcount>0
begin
set @l=@l+1
insert @re select a.nlID,@l,a.ownerNodeID,'上级nlID'
from tbNode_List a,@re b
where a.nlID=b.ownerNodeID and b.lev=@l-1 and a.ownerNodeID is not null
end
update @re set lev=@l-lev
return
end
go
declare @nlID varchar(10)
set @nlID = '0003'
select * from dbo.f_getP(@nlID)
union
select * from dbo.f_getC(@nlID)
drop function f_getP,f_getC
drop table [tbNode_List]
/***************
nlID lev ownerNodeID TFlag
---------- ----------- ----------- ----------
0001 1 0 上级nlID
0003 2 0001 本级nlID
0004 1 0003 下级nlID
0005 1 0003 下级nlID
(4 行受影响)
