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Article #9246Re: ����ʲ�����
From: �泯��,��ů����
Date: Sun, 24 Aug 2003 05:10
Date: Sun, 24 Aug 2003 05:10
25 lines
2351 bytes
2351 bytes
��˵����StudentID��BorrowStudent������ ����BorrowerStudentID��Student������ Ҫ����ı�����һ��Ҫ�DZ���������� �� �� tiancai (tiancai) �Ĵ������ᵽ: �� : foreign key : һ�����ֶ��ѣ���������Щ����ʱ����һ�㣨�ҵ���⣩ : ������Ȿ����ָ�� : ���Student���primary key��StudentID : ��һ����¼ѧ������¼����ݿ������л�����ôһ���ֶ�BorrowerStudentID : �Ǹ�����һ��foreign key. : ��Ϊ�Ǹ��ֶε�ȡֵ����Student��primarykey : : ���������������������foreign key������֣���Ϊ������������ѡ��������� : ���һ��primarykey����һ�����foreign key��ôɾ���¼��ʱ���Ҫ������� : .................������ʡ�ԣ� -- ��������, ��һ���Ҹ����� ι��, ���, �������� ��������, ������ʳ���߲� ����һ����, �泯��, ��ů���� ��������, ��ÿһ������ͨ�� ���������ҵ��Ҹ� [m[1;32m�� ��Դ:����ˮ˼Դ bbs.sjtu.edu.cn��[FROM: 211.80.44.172][m
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arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-06!sn-xit-08!supernews.com!news-out.visi.com!petbe.visi.com!news.linkpendium.com!nntp-relay.ihug.net!ihug.co.nz!logbridge.uoregon.edu!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: 2003-08-23 22:08:01 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-06!sn-xit-08!supernews.com!news-out.visi.com!petbe.visi.com!news.linkpendium.com!nntp-relay.ihug.net!ihug.co.nz!logbridge.uoregon.edu!newsgate.cuhk.edu.hk!news.zixia.net!news.neu.edu.cn!SJTU From: wa.bbs@bbs.sjtu.edu.cn (�泯��,��ů����) Newsgroups: cn.bbs.comp.database Subject: Re: ����ʲ����� Date: 24 Aug 2003 05:10:00 GMT Organization: ��ˮ˼Դ Message-ID: <4807kH$aea@bbs.sjtu.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit X-Filename: database/M.1061701553.A Lines: 25