锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#20122;&#27954;&#118;&#97;&#22312;&#32447;&#118;&#97;&#22825;&#22530;&#118;&#97;&#25163;&#26426;&#44;&#20122;&#27954;&#65;&#86;&#25104;&#20154;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#35266;&#30475;&#44;&#20122;&#27954;&#22269;&#20135;&#31934;&#21697;&#26080;&#30721;&#20037;&#20037;&#20061;&#20061;</title><link>http://www.tkk7.com/xwood/category/47265.html</link><description>JUST ABC OR銆�DEF</description><language>zh-cn</language><lastBuildDate>Sun, 24 Jun 2012 05:04:41 GMT</lastBuildDate><pubDate>Sun, 24 Jun 2012 05:04:41 GMT</pubDate><ttl>60</ttl><item><title>E鈥擱鏁版嵁妯″瀷</title><link>http://www.tkk7.com/xwood/articles/339742.html</link><dc:creator>xwood</dc:creator><author>xwood</author><pubDate>Fri, 04 May 2012 01:47:00 GMT</pubDate><guid>http://www.tkk7.com/xwood/articles/339742.html</guid><wfw:comment>http://www.tkk7.com/xwood/comments/339742.html</wfw:comment><comments>http://www.tkk7.com/xwood/articles/339742.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/xwood/comments/commentRss/339742.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/xwood/services/trackbacks/339742.html</trackback:ping><description><![CDATA[<p>涓�銆丒&#8212;妯″瀷綆�浠嬶細</p>
<p><span id="qqe8ugk"    class="Apple-tab-span" style="white-space:pre"> </span>E&#8212;R妯″瀷(Entity-Relationship Model)錛屽張鍙疄浣?#8212;鍏崇郴妯″瀷錛屾垨E/R妯″瀷銆傛槸寤虹珛鏁版嵁搴撹繃紼嬩腑鏈�姒傚康鍖栵紝鏈�鎺ヨ繎瀹炰綋鐨勬ā鍨嬨�傚湪E&#8212;R妯″瀷涓紝鏁版嵁緇撴瀯琚〃紺轟負&#8220;瀹炰綋&#8212;鑱旂郴&#8221;鍥撅紝鍥句腑鏈変笁涓富瑕佺殑鍏冪礌綾誨瀷錛?/p>
<p><span id="u0o0maw"    class="Apple-tab-span" style="white-space:pre"> </span>1.瀹炰綋闆嗭紙Entity)錛氫粠緙栫▼鐨勮搴︽潵璁詫紝涓庡璞＄浉浼箋�傚湪E&#8212;R鍥句腑鐢ㄧ煩褰㈡琛ㄧず銆?/p>
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<p><span id="s80ec0c"    class="Apple-tab-span" style="white-space:pre"> </span>3.鍏崇郴(Relationship)錛氫袱涓垨澶氫釜瀹炰綋闂寸殑鐢峰榪炴帴錛屽彲浠ヤ竴瀵逛竴銆佷竴瀵瑰銆佸瀵逛竴銆佸瀵瑰絳夊縐嶅叧緋匯�傚湪E&#8212;R鍥句腑鐢ㄦ１褰㈣〃紺恒�?/p>
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