求一下合并的函数

[zhangzhicong]

问题回复表A， 有三个字段有id,content,retime,数据如：
------------------------------------------
001 ABC 12：00
001 BHG 10：00
001 123 23：00
002 ABC 11：00
002 BHG 10：34
..........

需要得出的结果：
001 "ABC 12:00 BHG 10:00 123 23:00"
002 "ABC 11:00 BHG 10:34"

就是把相同ID的记录的content,retime合并在一个字符串里。

先谢谢大家了。

[feixianxxx]

--2005
select ID,
合并=STUFF((select ' '+content+' '+retime from a where K.id=id for XML PATH('') ),1,1,'')
FROM A K

[--小F--]

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) 

*/ 

[feixianxxx]

--2000
CREATE FUNCTION K (@ID INT)
RETURNS VARCHAR(4000)
AS
BEGIN 
	DECLARE @S VARCHAR(4000)
	SET @S=''
	SELECT @S=@S+' '+CONTENT+' '+RETIME FROM A WHERE ID=@ID
END
GO
SELECT DISTINCT ID,dbo.K (ID) AS HEBING FROM  A 

[Mr_Nice]

--> 测试数据：[TB]
if object_id('[TB]') is not null drop table [TB]
create table [TB]([id] varchar(3),[content] varchar(3),[retime] VARCHAR(6))
insert [TB]
select '001','ABC','12:00' union all
select '001','BHG','10:00' union all
select '001','123','23:00' union all
select '002','ABC','11:00' union all
select '002','BHG','10:34'

select * from [TB]

select id, [values]=stuff((select ','+[content]+ [retime] from tb t where id=tb.id for xml path('')), 1, 1, '') 
from tb 
group by id 
/*
id	values
001	ABC12:00,BHG10:00,12323:00
002	ABC11:00,BHG10:34*/

[永生天地]

lz这个小小复杂

[Mr_Nice]

CREATE FUNCTION dbo.f_strUnite(@id int) 
RETURNS varchar(8000) 
AS 
BEGIN 
    DECLARE @str varchar(8000) 
    SET @str = '' 
    SELECT @str = @str + ',' + [content]+ [retime]  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

--2000

[dawugui]

create table [TB]([id] varchar(3),[content] varchar(3),[retime] VARCHAR(6))
insert [TB]
select '001','ABC','12:00' union all
select '001','BHG','10:00' union all
select '001','123','23:00' union all
select '002','ABC','11:00' union all
select '002','BHG','10:34'
go

create function dbo.f_str(@id varchar(10)) returns varchar(100)
as
begin
    declare @str varchar(1000)
    set @str = ''
    select @str = @str + ' ' + cast(content as varchar) + ' ' + cast(retime as varchar) from tb where id = @id
    set @str = right(@str , len(@str) - 1)
    return @str
end
go



--调用函数
select id , 结果 = dbo.f_str(id) from tb group by id

drop function dbo.f_str
drop table tb

/*
id   结果                                                                                                   
---- ---------------------------------------------------------------------------------------------------- 
001  ABC 12:00 BHG 10:00 123 23:00
002  ABC 11:00 BHG 10:34

（所影响的行数为 2 行）
*/

[东那个升]

select id, [values]=stuff((select ' '+[content]+' '+[retime] from tb t where id=tb.id for xml path('')), 1, 1, '') 
from tb 
group by id 

id   values
---- ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
001  ABC 12:00 BHG 10:00 123 23:00
002  ABC 11:00 BHG 10:34

(2 行受影响)