BOM 给点例子你参考 --bom结构,查找节点下所有子节点:create table os(id int,parentid int,desn varchar(10)) insert into os select 1,0,'体育用品' insert into os select 2,0,'户外运动' insert into os select 3,1,'篮球' insert into os select 4,1,'足球' insert into os select 5,2,'帐篷' insert into os select 6,2,'登山鞋' insert into os select 7,0,'男士用品' insert into os select 8,7,'刮胡刀' insert into os select 9,3,'大号篮球'--求个节点下所有子节点: create function f_cid(@id int) returns varchar(500) as begin declare @t table(id int,parentid int,desn varchar(10),lev int) declare @lev int set @lev=1 insert into @t select *,@lev from os where id=@id while(@@rowcount>0) begin set @lev=@lev+1 insert into @t select a.*,@lev from os a,@t b where a.parentid=b.id and b.lev=@lev-1 end declare @cids varchar(500) select @cids=isnull(@cids+',','')+ltrim(id) from @t order by lev return @cids end go--调用函数 select *,ids=dbo.f_cid(id) from os --得到每个节点路径: create proc wsp2 @id int as select *,cast(' ' as varchar(10)) fullpath into #os from os DECLARE @i int,@j int set @i=0 set @j=1 select @i=max(parentid) from #os update #os set fullpath=id while @j<=@i begin update #os set fullpath=a.fullpath+','+ltrim(#os.id) from #os inner join #os a on #os.parentid=a.id where #os.parentid=@j set @j=@j+1 end select * from #os go --调用存储过程 exec wsp2 1 ---------------------------------------------------------------------------------------------------------------- create table tb(id varchar(3) , pid varchar(3) , name varchar(10)) insert into tb values('001' , null , '广东省') insert into tb values('002' , '001' , '广州市') insert into tb values('003' , '001' , '深圳市') insert into tb values('004' , '002' , '天河区') insert into tb values('005' , '003' , '罗湖区') insert into tb values('006' , '003' , '福田区') insert into tb values('007' , '003' , '宝安区') insert into tb values('008' , '007' , '西乡镇') insert into tb values('009' , '007' , '龙华镇') insert into tb values('010' , '007' , '松岗镇') go --查询指定节点及其所有子节点的函数 create function f_cid(@ID varchar(3)) returns @t_level table(id varchar(3) , level int) as begin declare @level int set @level = 1 insert into @t_level select @id , @level while @@ROWCOUNT > 0 begin set @level = @level + 1 insert into @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001(广东省)及其所有子节点 select a.* from tb a , f_cid('001') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 001 NULL 广东省 002 001 广州市 003 001 深圳市 004 002 天河区 005 003 罗湖区 006 003 福田区 007 003 宝安区 008 007 西乡镇 009 007 龙华镇 010 007 松岗镇 (所影响的行数为 10 行) */ --调用函数查询002(广州市)及其所有子节点 select a.* from tb a , f_cid('002') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 002 001 广州市 004 002 天河区 (所影响的行数为 2 行) */ --调用函数查询003(深圳市)及其所有子节点 select a.* from tb a , f_cid('003') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 003 001 深圳市 005 003 罗湖区 006 003 福田区 007 003 宝安区 008 007 西乡镇 009 007 龙华镇 010 007 松岗镇 (所影响的行数为 7 行) */ drop table tb drop function f_cid ---------------------------------------------------------------------------------------------------------------- set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go ALTER trigger [tri_updatesalary_Mem_Type] on [dbo].[SalaryIncrease] after insert as declare @i int set @i=@@identity
update m set m.Mem_Type=case when s.SMark>500000 then '退休会员'--500000 when s.SMark>400000 then '钻石五级'--400000 when s.SMark>300000 then '钻石四级'--300000 when s.SMark>200000 then '钻石三级'--200000 when s.SMark>100000 then '钻石二级'--100000 when s.SMark>50000 then '钻石一级'--50000 when s.SMark>40000 then '五星级'--40000 when s.SMark>30000 then '四星级'--30000 when s.SMark>20000 then '三星级'--20000 when s.SMark>10000 then '二星级'--10000 when s.SMark>5000 then '一星级'--5000 else '一般VIP会员' end from MemberInfo m join (select s.SCardName,sum(s.SMark) as SMark from SalaryIncrease s join inserted i on s.SCardName=i.SCardName group by s.SCardName) s on m.Mem_Num=s.SCardName
--if exists(select * from MemberInfo m join inserted i on m.Mem_Num=i.SCardName and m.Mem_Mark>100 ) if exists (select m.SCardName,sum(m.ShopMark)as from(select m.SCardName,m.ShopMark from ShoppingMark m join inserted i on m.SCardName=i.SCardName where year(m.SDate)=year(getdate()) and month(m.SDate)=month(getdate())) m group by m.SCardName having sum(m.ShopMark)>100) /**/ /* --最新的(我写的,上面是整合魅影的)select * from ShoppingMark SM join (select m.SCardName,sum(m.ShopMark) as Mark from ShoppingMark m join inserted i on m.SCardName=i.SCardName group by m.SCardName) s on SM.SCardName=s.ScardName where month(SDate)=month(getdate()) and year(SDate)=year(getdate()) and s.Mark>100*/ begin update s set s.SIncease=case --积分大于1000就是星级.所以不用判断是否是星级 when m.Mem_Type<>'一般VIP会员' then s.SMark*0.3 else case when s.SMark>4000 then s.SMark*0.3 -- when s.SMark>4000 then -- 200*0.2+200*0.23+200*0.25+200*0.28+(s.SMark-800)*0.3 when s.SMark>3000 then 1000*0.2+1000*0.23+1000*0.25+(s.SMark-600)*0.28 when s.SMark>2000 then 1000*0.2+100*0.23+(s.SMark-400)*0.25 when s.SMark>1000 then (s.SMark-200)*.023+1000*0.2 else s.SMark*0.2 end end from SalaryIncrease as s join inserted i on s.SCardName=i.SCardName join MemberInfo m on (i.SCardName=m.Mem_Num and s.SID=@i) or (i.SCardName=m.Mem_Num and s.SIncease=0) end --go
USE tempdb GO-- 建立演示环境 CREATE TABLE Dept( id int PRIMARY KEY, parent_id int, name nvarchar(20)) INSERT Dept SELECT 0, 0, N'<全部>' UNION ALL 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-- 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-- 删除演示环境 DROP TABLE Dept
--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 --*/
不好意思,忘记说了 是mysql数据库 麻烦用mysql语法
--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 --*/
给点例子你参考
--bom结构,查找节点下所有子节点:create table os(id int,parentid int,desn varchar(10))
insert into os select 1,0,'体育用品'
insert into os select 2,0,'户外运动'
insert into os select 3,1,'篮球'
insert into os select 4,1,'足球'
insert into os select 5,2,'帐篷'
insert into os select 6,2,'登山鞋'
insert into os select 7,0,'男士用品'
insert into os select 8,7,'刮胡刀'
insert into os select 9,3,'大号篮球'--求个节点下所有子节点:
create function f_cid(@id int)
returns varchar(500)
as
begin
declare @t table(id int,parentid int,desn varchar(10),lev int)
declare @lev int
set @lev=1
insert into @t select *,@lev from os where id=@id
while(@@rowcount>0)
begin
set @lev=@lev+1
insert into @t select a.*,@lev from os a,@t b
where a.parentid=b.id and b.lev=@lev-1
end
declare @cids varchar(500)
select @cids=isnull(@cids+',','')+ltrim(id) from @t order by lev
return @cids
end
go--调用函数
select *,ids=dbo.f_cid(id) from os
--得到每个节点路径:
create proc wsp2
@id int
as
select *,cast(' ' as varchar(10)) fullpath into #os from os
DECLARE @i int,@j int
set @i=0
set @j=1
select @i=max(parentid) from #os
update #os set fullpath=id
while @j<=@i
begin
update #os set fullpath=a.fullpath+','+ltrim(#os.id)
from #os inner join #os a on #os.parentid=a.id
where #os.parentid=@j
set @j=@j+1
end
select * from #os
go
--调用存储过程
exec wsp2 1
----------------------------------------------------------------------------------------------------------------
create table tb(id varchar(3) , pid varchar(3) , name varchar(10))
insert into tb values('001' , null , '广东省')
insert into tb values('002' , '001' , '广州市')
insert into tb values('003' , '001' , '深圳市')
insert into tb values('004' , '002' , '天河区')
insert into tb values('005' , '003' , '罗湖区')
insert into tb values('006' , '003' , '福田区')
insert into tb values('007' , '003' , '宝安区')
insert into tb values('008' , '007' , '西乡镇')
insert into tb values('009' , '007' , '龙华镇')
insert into tb values('010' , '007' , '松岗镇')
go --查询指定节点及其所有子节点的函数
create function f_cid(@ID varchar(3)) returns @t_level table(id varchar(3) , level int)
as
begin
declare @level int
set @level = 1
insert into @t_level select @id , @level
while @@ROWCOUNT > 0
begin
set @level = @level + 1
insert into @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001(广东省)及其所有子节点
select a.* from tb a , f_cid('001') b where a.id = b.id order by a.id
/*
id pid name
---- ---- ----------
001 NULL 广东省
002 001 广州市
003 001 深圳市
004 002 天河区
005 003 罗湖区
006 003 福田区
007 003 宝安区
008 007 西乡镇
009 007 龙华镇
010 007 松岗镇 (所影响的行数为 10 行)
*/ --调用函数查询002(广州市)及其所有子节点
select a.* from tb a , f_cid('002') b where a.id = b.id order by a.id
/*
id pid name
---- ---- ----------
002 001 广州市
004 002 天河区 (所影响的行数为 2 行)
*/ --调用函数查询003(深圳市)及其所有子节点
select a.* from tb a , f_cid('003') b where a.id = b.id order by a.id
/*
id pid name
---- ---- ----------
003 001 深圳市
005 003 罗湖区
006 003 福田区
007 003 宝安区
008 007 西乡镇
009 007 龙华镇
010 007 松岗镇 (所影响的行数为 7 行)
*/ drop table tb
drop function f_cid
----------------------------------------------------------------------------------------------------------------
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
ALTER trigger [tri_updatesalary_Mem_Type]
on [dbo].[SalaryIncrease]
after insert
as
declare @i int
set @i=@@identity
update m
set m.Mem_Type=case when s.SMark>500000 then '退休会员'--500000
when s.SMark>400000 then '钻石五级'--400000
when s.SMark>300000 then '钻石四级'--300000
when s.SMark>200000 then '钻石三级'--200000
when s.SMark>100000 then '钻石二级'--100000
when s.SMark>50000 then '钻石一级'--50000
when s.SMark>40000 then '五星级'--40000
when s.SMark>30000 then '四星级'--30000
when s.SMark>20000 then '三星级'--20000
when s.SMark>10000 then '二星级'--10000
when s.SMark>5000 then '一星级'--5000
else '一般VIP会员'
end
from MemberInfo m
join (select s.SCardName,sum(s.SMark) as SMark
from SalaryIncrease s join inserted i on s.SCardName=i.SCardName group by s.SCardName) s
on m.Mem_Num=s.SCardName
--if exists(select * from MemberInfo m join inserted i on m.Mem_Num=i.SCardName and m.Mem_Mark>100 )
if exists (select m.SCardName,sum(m.ShopMark)as from(select m.SCardName,m.ShopMark from ShoppingMark m join inserted i on m.SCardName=i.SCardName
where year(m.SDate)=year(getdate()) and month(m.SDate)=month(getdate())) m
group by m.SCardName having sum(m.ShopMark)>100)
/**/
/* --最新的(我写的,上面是整合魅影的)select * from ShoppingMark SM join (select m.SCardName,sum(m.ShopMark) as Mark from ShoppingMark m join inserted i on m.SCardName=i.SCardName group by m.SCardName) s
on SM.SCardName=s.ScardName where month(SDate)=month(getdate()) and year(SDate)=year(getdate()) and s.Mark>100*/
begin
update s
set s.SIncease=case
--积分大于1000就是星级.所以不用判断是否是星级
when m.Mem_Type<>'一般VIP会员' then s.SMark*0.3
else case
when s.SMark>4000 then
s.SMark*0.3
-- when s.SMark>4000 then
-- 200*0.2+200*0.23+200*0.25+200*0.28+(s.SMark-800)*0.3
when s.SMark>3000 then
1000*0.2+1000*0.23+1000*0.25+(s.SMark-600)*0.28
when s.SMark>2000 then
1000*0.2+100*0.23+(s.SMark-400)*0.25
when s.SMark>1000 then
(s.SMark-200)*.023+1000*0.2
else s.SMark*0.2
end
end
from SalaryIncrease as s
join inserted i
on s.SCardName=i.SCardName
join MemberInfo m
on (i.SCardName=m.Mem_Num and s.SID=@i) or (i.SCardName=m.Mem_Num and s.SIncease=0)
end
--go
GO-- 建立演示环境
CREATE TABLE Dept(
id int PRIMARY KEY,
parent_id int,
name nvarchar(20))
INSERT Dept
SELECT 0, 0, N'<全部>' UNION ALL
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-- 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-- 删除演示环境
DROP TABLE Dept
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
--*/
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
--*/