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Êý¾Ý±íxxx
ID  ljid  xname
1    3    Öйú
2    3    ÃÀ¹ú
3    4    ÈÕ±¾
4    4    Ì©¹ú

ÓÃÒ»ÌõsqlÓï¾ä,ÐγÉ
ljid    xname
3        Öйú+ÃÀ¹ú
4        ÈÕ±¾+Ì©¹ú
SQL code:
----------------------------------------------------------------
-- Author :fredrickhu(ÎÒÊÇСF£¬Ïò¸ßÊÖѧϰ)
-- Date :2009-11-04 16:04:34
-- 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)
--
----------------------------------------------------------------
--> ²âÊÔÊý¾Ý£º[tb]
if object_id('[tb]') is not null drop table [tb]
go
create table [tb]([ID] int,[ljid] int,[xname] varchar(4))
insert [tb]
select 1,3,'Öйú' union all
select 2,3,'ÃÀ¹ú' union all
select 3,4,'ÈÕ±¾' union all
select 4,4,'Ì©¹ú'
--------------¿ªÊ¼²éѯ--------------------------
CREATE FUNCTION dbo.f_strUnite(@id int)
RETURNS varchar(8000)
AS
BEGIN
DECLARE @str varchar(8000)
SET @str = ''
SELECT @str = @str + '+' + xname from tb WHERE ljid=@id
RETURN STUFF(@str, 1, 1, '')
END


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