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A B 
ÉϺ£ 2000
Äþ²¨ 2000
ÉϺ£ 3000
º¼ÖÞ 3000


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SQL code:
----------------------------------------------------------------
-- Author :SQL77(ֻΪ˼ÆëÀÏ)
-- Date :2010-01-14 08:17:10
-- Version:
-- Microsoft SQL Server 2000 - 8.00.194 (Intel X86)
-- Aug 6 2000 00:57:48
-- Copyright (c) 1988-2000 Microsoft Corporation
-- Desktop Engine on Windows NT 5.1 (Build 2600: Service Pack 3)
--
----------------------------------------------------------------
--> ²âÊÔÊý¾Ý£º[TB]
if object_id('[TB]') is not null drop table [TB]
go
create table [TB]([A] varchar(4),[B] int)
insert [TB]
select 'ÉϺ£',2000 union all
select 'Äþ²¨',2000 union all
select 'ÉϺ£',3000 union all
select 'º¼ÖÞ',3000
--------------¿ªÊ¼²éѯ--------------------------
DECLARE @B NVARCHAR(200)
SET @B='ÉϺ£,Äþ²¨'
select B from [TB]
WHERE CHARINDEX(','+A+',',','+@B+',')>0
GROUP BY B HAVING COUNT(1)=LEN(@B)-LEN(REPLACE(@B,',',''))+1
----------------½á¹û----------------------------
/*

£¨ËùÓ°ÏìµÄÐÐÊýΪ 4 ÐУ©

B
-----------
2000

£¨ËùÓ°ÏìµÄÐÐÊýΪ 1 ÐУ©


*/


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