as
begin
1 铅笔 0001
select @re=left(@re, len(@re)-1)
6 钢笔 0004
set @re=''

3.查询语句
SET ANSI_NULLS ON
9 圆珠笔 0007
Create function [dbo].[fun](@type nvarchar(10))
8 圆珠笔 0008
铅笔 0001,0002,0003
GO
圆珠笔 0007,0008 declare @re nvarchar(200)
/****** Object: UserDefinedFunction [dbo].[fun] Script Date: 11/22/2011 16:09:45 ******/
return @re
3 铅笔 0003
declare @code nvarchar(200)
7 圆珠笔 0007
select @re=@re+productCode+',' from T where type=@type group by productCode
GO
select type,dbo.fun(type) from (select distinct type from T) A
钢笔 0004,0005
id type productCode
2.自定义函数fun
GO
2 铅笔 0002
SET QUOTED_IDENTIFIER ON
end
returns nvarchar(200)

set @code=''
4 钢笔 0004

复制代码 代码如下:

5 钢笔 0005
结果:
1.表结构