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Article #9262Re: ����ʲ�����
From: ����
Date: Sun, 24 Aug 2003 11:03
Date: Sun, 24 Aug 2003 11:03
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�ݼĸ��� ������˵��ȫ���Բ�Ψһ �� �� tiancai (tiancai) �Ĵ������ᵽ: �� : In table 'student', any two records won't own the same value in the field 'Stu : dnetID' : : But as one student can borrow many books, in LibraryRecord, two records can ha : ve the same value in the fields 'BorrowerID' which is a foreign key. : �� �� wa �Ĵ������ᵽ: �� -- http://www.myasyz.net/10001/images/10001_7.jpg [m[1;34m�� ��Դ:����ˮ˼Դ bbs.sjtu.edu.cn��[FROM: 218.193.179.91][m
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arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-08!supernews.com!news-out.visi.com!petbe.visi.com!newsfeed.media.kyoto-u.ac.jp!newsgate.cuhk.edu.hk!news.zixia.net!news.neu.edu.cn!SJTUShow Full Headers
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X-Google-Language: Chinese,GB X-Google-Thread: 101948,d8f441e5615bacc9 X-Google-Attributes: gid101948,public X-Google-ArrivalTime: 2003-08-24 04:03:17 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-08!supernews.com!news-out.visi.com!petbe.visi.com!newsfeed.media.kyoto-u.ac.jp!newsgate.cuhk.edu.hk!news.zixia.net!news.neu.edu.cn!SJTU From: hongliang.bbs@bbs.sjtu.edu.cn (����) Newsgroups: cn.bbs.comp.database Subject: Re: ����ʲ����� Date: 24 Aug 2003 11:03:59 GMT Organization: ��ˮ˼Դ Message-ID: <480HDV$aOc@bbs.sjtu.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit X-Filename: database/M.1061723023.A Lines: 15