找一个这样的视图

[jacobwc]

有记录如下:
people code name
A 001 二甲
A 002 唐平
A 003 消炎药
A 004 甘精
B 002 唐平
B 001 二甲
B 005 红霉素


写成group by people 将name用;拼起来
A 二甲; 唐平;消炎药;甘精
B 唐平;二甲;红霉素

如果有name有重复的数据,最好能过滤掉...

[Mr_Nice]

/*
标题：按某字段合并字符串之一(简单合并)
作者：爱新觉罗.毓华(十八年风雨,守得冰山雪莲花开)
时间：2008-11-06
地点：广东深圳

描述：将如下形式的数据按id字段合并value字段。
id    value
----- ------
1     aa
1     bb
2     aaa
2     bbb
2     ccc
需要得到结果：
id     value
------ -----------
1      aa,bb
2      aaa,bbb,ccc
即：group by id, 求 value 的和（字符串相加）
*/
--1、sql2000中只能用自定义的函数解决
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

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

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

drop function dbo.f_str
drop table tb


--2、sql2005中的方法
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, [value] = stuff((select ',' + [value] from tb t where id = tb.id for xml path('')) , 1 , 1 , '')
from tb
group by id

drop table tb


--3、使用游标合并数据
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
declare @t table(id int,value varchar(100))--定义结果集表变量
--定义游标并进行合并处理
declare my_cursor cursor local for
select id , value from tb
declare @id_old int , @id int , @value varchar(10) , @s varchar(100)
open my_cursor
fetch my_cursor into @id , @value
select @id_old = @id , @s=''
while @@FETCH_STATUS = 0
begin
    if @id = @id_old
       select @s = @s + ',' + cast(@value as varchar)
    else
      begin
        insert @t values(@id_old , stuff(@s,1,1,''))
        select @s = ',' + cast(@value as varchar) , @id_old = @id
      end
    fetch my_cursor into @id , @value
END
insert @t values(@id_old , stuff(@s,1,1,''))
close my_cursor
deallocate my_cursor

select * from @t
drop table tb

引用个dawugui的，大家参考看看！

[水族杰纶]

2005
if not object_id('Tempdb..#t') is null
	drop table #t
Go
Create table #t([people] nvarchar(1),[code] nvarchar(3),[name] nvarchar(3))
Insert #t
select N'A',N'001',N'二甲' union all
select N'A',N'002',N'唐平' union all
select N'A',N'003',N'消炎药' union all
select N'A',N'004',N'甘精' union all
select N'B',N'002',N'唐平' union all
select N'B',N'001',N'二甲' union all
select N'B',N'005',N'红霉素'
Go
select [people],
       [name]=stuff((select ','+[name] from #t where [people]=t.[people] for xml path('')),1,1,'')
from tb t 
group by  [people]
/*
people name
------ -----------------------
A      二甲,唐平,消炎药,甘精
B      唐平,二甲,红霉素

(2 個資料列受到影響)
*/

[--小F--]

---2005 2000参考一楼
----------------------------------------------------------------
-- Author  :fredrickhu(我是小F，向高手学习)
-- Date    :2010-01-18 09:02:38
-- Version:
--      Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86) 
--	Nov 24 2008 13:01:59 
--	Copyright (c) 1988-2005 Microsoft Corporation
--	Developer Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
--
----------------------------------------------------------------
--> 测试数据：[tb]
if object_id('[tb]') is not null drop table [tb]
go 
create table [tb]([people] varchar(1),[code] varchar(3),[name] varchar(6))
insert [tb]
select 'A','001','二甲' union all
select 'A','002','唐平' union all
select 'A','003','消炎药' union all
select 'A','004','甘精' union all
select 'B','002','唐平' union all
select 'B','001','二甲' union all
select 'B','005','红霉素'
--------------开始查询--------------------------
select
 people, [name] = stuff((select ',' + [name] from tb t where people = tb.people for xml path('')) , 1 , 1 , '')
from
 tb
group by
 people

----------------结果----------------------------
/* people name
------ ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
A      二甲,唐平,消炎药,甘精
B      唐平,二甲,红霉素

(2 行受影响)
*/

[jlj84237485]

UP

[clicsullivan]

为什么我按照3楼的代码放到05上运行会报错啊，说：消息 170，级别 15，状态 1，第 2 行
第 2 行: 'xml' 附近有语法错误。哪位大侠能告诉我为什么吗？