mysql查某个结点所有子结点的sql语句

[hyl198611]

库表 organization_id name parent_id
1 总裁 null
2 副总 1
3 开发部 2
4 副总 1
5 销售部 4

查询总裁这个节点 把他下级的都列出如何写

[liangCK]

--测试数据
CREATE TABLE tb(ID char(3),PID char(3),Name nvarchar(10))
INSERT tb SELECT '001',NULL ,'山东省'
UNION ALL SELECT '002','001','烟台市'
UNION ALL SELECT '004','002','招远市'
UNION ALL SELECT '003','001','青岛市'
UNION ALL SELECT '005',NULL ,'四会市'
UNION ALL SELECT '006','005','清远市'
UNION ALL SELECT '007','006','小分市'
GO

--查询指定节点及其所有子节点的函数
CREATE FUNCTION f_Cid(@ID char(3))
RETURNS @t_Level TABLE(ID char(3),Level int)
AS
BEGIN
	DECLARE @Level int
	SET @Level=1
	INSERT @t_Level SELECT @ID,@Level
	WHILE @@ROWCOUNT>0
	BEGIN
		SET @Level=@Level+1
		INSERT @t_Level SELECT a.ID,@Level
		FROM tb a,@t_Level b
		WHERE a.PID=b.ID
			AND b.Level=@Level-1
	END
	RETURN
END
GO

--调用函数查询002及其所有子节点
SELECT a.*
FROM tb a,f_Cid('002') b
WHERE a.ID=b.ID
/*--结果
ID   PID  Name       
------ ------- ---------- 
002  001  烟台市
004  002  招远市
--*/

[liangCK]

if exists (select * from dbo.sysobjects where id = object_id(N'[tb]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
    drop table [tb]
GO

-- 示例数据
create table [tb]([id] int PRIMARY KEY,[pid] int,name nvarchar(20))
INSERT [tb] SELECT  1,0,N'中国'
UNION  ALL  SELECT  2,0,N'美国'
UNION  ALL  SELECT  3,0,N'加拿大'
UNION  ALL  SELECT  4,1,N'北京'
UNION  ALL  SELECT  5,1,N'上海'
UNION  ALL  SELECT  6,1,N'江苏'
UNION  ALL  SELECT  7,6,N'苏州'
UNION  ALL  SELECT  8,7,N'常熟'
UNION  ALL  SELECT  9,6,N'南京'
UNION  ALL  SELECT 10,6,N'无锡'
UNION  ALL  SELECT 11,2,N'纽约'
UNION  ALL  SELECT 12,2,N'旧金山'
GO 

-- 查询指定id的所有子 

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_cid]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[f_cid]
GO
-- =====================================================
-- 查询指定id的所有子
-- 邹建 2005-07(引用请保留此信息)

-- 调用示例

/*--调用(查询所有的子)
    SELECT A.*,层次=B.[level] 
    FROM [tb] A,f_cid(2)B
    WHERE A.[id]=B.[id]
--*/
-- =====================================================
CREATE FUNCTION f_cid(@id int)
RETURNS TABLE
AS
RETURN(
    WITH ctb([id],[level])
    AS(
        SELECT [id],1 FROM [tb]
        WHERE [pid]=@id
        UNION ALL
        SELECT A.[id],B.[level]+1
        FROM [tb] A,ctb B
        WHERE A.[pid]=B.[id])
    SELECT * FROM ctb
    --如果只显示最明细的子(下面没有子),则将上面这句改为下面的
--    SELECT * FROM ctb A
--    WHERE NOT EXISTS(
--        SELECT 1 FROM [tb] WHERE [pid]=A.[id])
)
GO

--调用(查询所有的子)
SELECT A.*,层次=B.[level] 
FROM [tb] A,f_cid(2)B
WHERE A.[id]=B.[id]
GO 

-- 查询指定id的所有父 

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_pid]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[f_pid]
GO
-- =====================================================
-- 查询指定id的所有父
-- 邹建 2005-07(引用请保留此信息)

-- 调用示例

/*--调用(查询所有的父)
    SELECT A.*,层次=B.[level] 
    FROM [tb] A,[f_pid](2)B
    WHERE A.[id]=B.[id]
--*/
-- =====================================================
CREATE FUNCTION [f_pid](@id int)
RETURNS TABLE
AS
RETURN(
    WITH ptb([id],[level])
    AS(
        SELECT [pid],1 FROM [tb]
        WHERE [id]=@id
            AND [pid]<>0
        UNION ALL
        SELECT A.[pid],B.[level]+1
        FROM [tb] A,ptb B
        WHERE A.[id]=B.[id]
            AND [pid]<>0)
    SELECT * FROM ptb
)
GO

--调用(查询所有的父)
SELECT A.*,层次=B.[level] 
FROM [tb] A,[f_pid](7)B
WHERE A.[id]=B.[id]
GO 

-- 树形分级显示 


if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_id]') and xtype in (N'FN', N'IF', N'TF'))
    drop function [dbo].[f_id]
GO
-- =====================================================
-- 级别及排序字段(树形分级显示)
-- 邹建 2005-07(引用请保留此信息)

-- 调用示例

/*--调用实现树形显示

    --调用函数实现分级显示
    SELECT N'|'+REPLICATE('-',B.[level]*4)+A.name
    FROM [tb] A,f_id()B 
    WHERE a.[id]=b.[id]
    ORDER BY b.sid

    --当然,这个也可以根本不用写函数,直接排序即可
    WITH stb([id],[level],[sid])
    AS(
        SELECT [id],1,CAST(RIGHT(10000+[id],4) as varchar(8000))
        FROM [tb]
        WHERE [pid]=0
        UNION ALL
        SELECT A.[id],B.[level]+1,B.sid+RIGHT(10000+A.[id],4)
        FROM [tb] A,stb B
        WHERE A.[pid]=B.[id])
    SELECT N'|'+REPLICATE('-',B.[level]*4)+A.name
    FROM [tb] A,stb B 
    WHERE a.[id]=b.[id]
    ORDER BY b.sid    
--*/
-- =====================================================
CREATE FUNCTION f_id()
RETURNS TABLE
AS
RETURN(
    WITH stb([id],[level],[sid])
    AS(
        SELECT [id],1,CAST(RIGHT(10000+[id],4) as varchar(8000))
        FROM [tb]
        WHERE [pid]=0
        UNION ALL
        SELECT A.[id],B.[level]+1,B.sid+RIGHT(10000+A.[id],4)
        FROM [tb] A,stb B
        WHERE A.[pid]=B.[id])
    SELECT * FROM stb
)
GO

--调用函数实现分级显示
SELECT N'|'+REPLICATE('-',B.[level]*4)+A.name
FROM [tb] A,f_id()B 
WHERE a.[id]=b.[id]
ORDER BY b.sid
GO 

[liangCK]

mysql的.请自觉转到mysql区.

[hery2002]

[Quote=引用 3 楼 liangCK 的回复:]
mysql的.请自觉转到mysql区.
[/Quote]
呵呵,贴了半天,才发现啊~~

[hyl198611]

不好意思啊 急的晕过头了 ！

[tianhuo_soft]

几点 分组 大乌龟曾经写过

[CathySun118]

select * from 库表
connect by organization_id =parent_id start by organization_id=1