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if object_id('temptable') is not null
drop table temptable
create table temptable(KHMC varchar(20),PPH varchar(4),JSR varchar(10),SJ int)
insert temptable select '公司A','1001','营销代表A',100
insert temptable select '公司B','1002','营销代表A',200
insert temptable select '公司B','1003','营销代表B',300
insert temptable select '公司C','1004','营销代表A',400
insert temptable select '公司C','1005','营销代表B',500
insert temptable select '公司C','1006','营销代表B',600
insert temptable select '公司C','1007','营销代表C',700
select * from temptable
--创建合并函数
if object_id('PPH') is not null
drop function PPH
go
create function dbo.PPH(@KHMC varchar(2000))
returns varchar(2000)
as
begin
declare @return varchar(2000)
select @return=''
select @return=@return+'、'+PPH
from temptable
where KHMC=@KHMC
return right(@return,len(@return)-1)
end
go
if object_id('JSR') is not null
drop function JSR
go
create function dbo.JSR(@KHMC varchar(2000))
returns varchar(2000)
as
begin
declare @return varchar(2000)
select @return=''
select @return=@return+'、'+JSR
from (select distinct KHMC,JSR from temptable)a
where KHMC=@KHMC
return right(@return,len(@return)-1)
end
go
--查询数据
select KHMC,dbo.PPH(KHMC) as PPH,dbo.JSR(KHMC) as JSR,sum(sj) as SJ
from temptable
group by KHMC
--删除数据
drop table temptable
drop function JSR
drop function PPH
if object_id('temptable') is not null
drop table temptable
create table temptable(KHMC varchar(20),PPH varchar(4),JSR varchar(10),SJ int)
insert temptable select '公司A','1001','营销代表A',100
insert temptable select '公司B','1002','营销代表A',200
insert temptable select '公司B','1003','营销代表B',300
insert temptable select '公司C','1004','营销代表A',400
insert temptable select '公司C','1005','营销代表B',500
insert temptable select '公司C','1006','营销代表B',600
insert temptable select '公司C','1007','营销代表C',700
select * from temptable
select KHMC,
stuff((select '、'+PPH from temptable where KHMC=a.khmc for xml path('')),1,1,'') as pph,
stuff((select '、'+JSR from (select distinct KHMC,JSR FROM temptable)b where khmc=a.khmc for xml path('')),1,1,'') as JSR,
sum(sj) as SJ
from temptable a
group by khmc
drop table temptable
/*
(1 行受影响)
(1 行受影响)
(1 行受影响)
(1 行受影响)
(1 行受影响)
(1 行受影响)
(1 行受影响)
KHMC PPH JSR SJ
-------------------- ---- ---------- -----------
公司A 1001 营销代表A 100
公司B 1002 营销代表A 200
公司B 1003 营销代表B 300
公司C 1004 营销代表A 400
公司C 1005 营销代表B 500
公司C 1006 营销代表B 600
公司C 1007 营销代表C 700
(7 行受影响)
KHMC pph JSR SJ
-------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -----------
公司A 1001 营销代表A 100
公司B 1002、1003 营销代表A、营销代表B 500
公司C 1004、1005、1006、1007 营销代表A、营销代表B、营销代表C 2200
(3 行受影响)
*/
if object_id('temptable') is not null
drop table temptable
create table temptable(KHMC varchar(20),PPH varchar(4),JSR varchar(10),SJ int)
insert temptable select '公司A','1001','营销代表A',100
insert temptable select '公司B','1002','营销代表A',200
insert temptable select '公司B','1003','营销代表B',300
insert temptable select '公司C','1004','营销代表A',400
insert temptable select '公司C','1005','营销代表B',500
insert temptable select '公司C','1006','营销代表B',600
insert temptable select '公司C','1007','营销代表C',700
select * from temptable
--创建合并函数
if object_id('PPH') is not null
drop function PPH
go
create function dbo.PPH(@KHMC varchar(2000))
returns varchar(2000)
as
begin
declare @return varchar(2000)
select @return=''
select @return=@return+'、'+PPH
from temptable
where KHMC=@KHMC
return right(@return,len(@return)-1)
end
go
if object_id('JSR') is not null
drop function JSR
go
create function dbo.JSR(@KHMC varchar(2000))
returns varchar(2000)
as
begin
declare @return varchar(2000)
select @return=''
select @return=@return+'、'+JSR
from (select distinct KHMC,JSR from temptable)a
where KHMC=@KHMC
return right(@return,len(@return)-1)
end
go
--查询数据
select a.*,b.sj
from (
select KHMC,dbo.PPH(KHMC) as PPH,dbo.JSR(KHMC) as JSR
from temptable
group by KHMC)a
left join
(
select khmc,sum(sj) as SJ
from temptable
group by khmc
)b
on a.KHMC=B.KHMC
--删除数据
drop table temptable
drop function JSR
drop function PPH
/*
KHMC PPH JSR SJ
-------------------- ---- ---------- -----------
公司A 1001 营销代表A 100
公司B 1002 营销代表A 200
公司B 1003 营销代表B 300
公司C 1004 营销代表A 400
公司C 1005 营销代表B 500
公司C 1006 营销代表B 600
公司C 1007 营销代表C 700
(7 行受影响)
KHMC PPH JSR sj
-------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -----------
公司A 1001 营销代表A 100
公司B 1002、1003 营销代表A、营销代表B 500
公司C 1004、1005、1006、1007 营销代表A、营销代表B、营销代表C 2200
(3 行受影响)
*/
--try
---2005
select khmc,
fph=stuff((select ','+fph from tb where khmc=t.khmc for xml path('')),1,1,''),
jsr=stuff((select ','+jsr from tb where khmc=t.khmc for xml path('')),1,1,''),
sum(sj)sj
from tb t group by khmc
合并列值
--*******************************************************************************************
表结构,数据如下:
id value
----- ------
1 aa
1 bb
2 aaa
2 bbb
2 ccc
需要得到结果:
id values
------ -----------
1 aa,bb
2 aaa,bbb,ccc
即:group by id, 求 value 的和(字符串相加)
1. 旧的解决方法(在sql server 2000中只能用函数解决。)
--=============================================================================
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
--1. 创建处理函数
CREATE FUNCTION dbo.f_strUnite(@id int)
RETURNS varchar(8000)
AS
BEGIN
DECLARE @str varchar(8000)
SET @str = ''
SELECT @str = @str + ',' + value FROM tb WHERE id=@id
RETURN STUFF(@str, 1, 1, '')
END
GO
-- 调用函数
SELECt id, value = dbo.f_strUnite(id) FROM tb GROUP BY id
drop table tb
drop function dbo.f_strUnite
go
/*
id value
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
(所影响的行数为 2 行)
*/
--===================================================================================
2. 新的解决方法(在sql server 2005中用OUTER APPLY等解决。)
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
-- 查询处理
SELECT * FROM(SELECT DISTINCT id FROM tb)A OUTER APPLY(
SELECT [values]= STUFF(REPLACE(REPLACE(
(
SELECT value FROM tb N
WHERE id = A.id
FOR XML AUTO
), ' <N value="', ','), '"/>', ''), 1, 1, '')
)N
drop table tb
/*
id values
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
(2 行受影响)
*/
--SQL2005中的方法2
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
select id, [values]=stuff((select ','+[value] from tb t where id=tb.id for xml path('')), 1, 1, '')
from tb
group by id
/*
id values
----------- --------------------
1 aa,bb
2 aaa,bbb,ccc
(2 row(s) affected)
*/
drop table tb
select
khmc,
stuff((select '、'+ltrim(fph) from tb where khmc=t.khmc for xml path('')),1,1,'') as fph,
stuff((select '、'+ltrim(jsr) from tb where khmc=t.khmc for xml path('')),1,1,'') as jsr,
sum(sj) as sj
from tb t
group by khmc