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Article #781Re: �ʸ�oracle����Ŀ
From: Galaxy��VOLUNTEERS
Date: Mon, 03 Nov 2008 12:16
Date: Mon, 03 Nov 2008 12:16
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1799 bytes
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�� �� OracleIOg (Oracle) �Ĵ������ᵽ: ��:
* ��math_student ( ID, name )
: ��english_student ( ID, name )
: һ���˿���ͬʱѡmath��english
: ��SQL��������ͬʱѡmath��english,��ID,Name
: �������뷨�ǰ����ű�union�� groupby id Ȼ��ѡcount=2�� ��û�и��Ч�ķ�����
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X-Google-Thread: 101948,91b768bc3716f97f,start X-Google-Attributes: gid101948,domainid0,public,usenet X-Google-Language: Chinese,GB Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!news1.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!feeder.erje.net!newsfeed.straub-nv.de!news.shec6.edu.cn!SJTU From: Dem.bbs@bbs.sjtu.edu.cn (Galaxy��VOLUNTEERS) Newsgroups: cn.bbs.comp.database Subject: Re: �ʸ�oracle����Ŀ Date: 03 Nov 2008 12:16:38 GMT Organization: ��ˮ˼Դ Message-ID: <4chA8P$bKf@bbs.sjtu.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit X-Filename: database/M.1225714585.A Lines: 22