sql server多行数据拼接的实例方法

1.表结构
idtypeproductCode
1铅笔0001
2铅笔0002
3铅笔0003
4钢笔0004
5钢笔0005
6钢笔0004
7圆珠笔0007
8圆珠笔0008
9圆珠笔0007
2.自定义函数fun
复制代码 代码如下:
GO
/****** Object: UserDefinedFunction [dbo].[fun] Script Date: 11/22/2011 16:09:45 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
Create function [dbo].[fun](@type nvarchar(10))
returns nvarchar(200)
as
begin
declare @re nvarchar(200)
declare @code nvarchar(200)
set @re=''
set @code=''
select @re=@re+productCode+',' from T where type=@type group by productCode
select @re=left(@re, len(@re)-1)
return @re
end

3.查询语句
select type,dbo.fun(type) from (select distinct type from T) A
结果:
钢笔 0004,0005
铅笔 0001,0002,0003
圆珠笔 0007,0008 (责任编辑：admin)