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>&#31934;&#21697;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#33258;&#25293;&#22270;&#29255;&#21306;&#44;&#22312;&#32447;&#20013;&#25991;&#23383;&#24149;&#36164;&#28304;&#44;&#20122;&#27954;&#36229;&#30896;&#31934;&#21697;&#19968;&#21306;&#20108;&#21306;</title><link>http://www.aygfsteel.com/smcdl/category/38407.html</link><description>鎶借薄鍗蟲槸絀猴紝絀哄嵆鏄娊璞°�?/description><language>zh-cn</language><lastBuildDate>Tue, 15 Dec 2009 17:06:52 GMT</lastBuildDate><pubDate>Tue, 15 Dec 2009 17:06:52 GMT</pubDate><ttl>60</ttl><item><title>濡備綍璁劇疆MySQL鐨凾imestamp涓洪粯璁ULL錛?/title><link>http://www.aygfsteel.com/smcdl/archive/2009/12/09/305338.html</link><dc:creator>teddy</dc:creator><author>teddy</author><pubDate>Wed, 09 Dec 2009 13:49:00 GMT</pubDate><guid>http://www.aygfsteel.com/smcdl/archive/2009/12/09/305338.html</guid><wfw:comment>http://www.aygfsteel.com/smcdl/comments/305338.html</wfw:comment><comments>http://www.aygfsteel.com/smcdl/archive/2009/12/09/305338.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/smcdl/comments/commentRss/305338.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/smcdl/services/trackbacks/305338.html</trackback:ping><description><![CDATA[鍦∕YSQL涓鏋滃湪寤鴻〃鐨勬椂鍊欐病鏈夋寚瀹歍imestamp瀛楁鏄惁涓篘ULL錛屽垯緋葷粺鑷姩娣誨姞榛樿鍊鹼紝浣跨敤DEFAULT NULL涔熶笉濂界敤錛屽叾瀹炴槸鍙互浣跨敤NULL鐩存帴鎸囧畾鐨勶紝濡備笅錛?br />
<br />
`CREATE_DATE` TIMESTAMP NULL<br />
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<img src ="http://www.aygfsteel.com/smcdl/aggbug/305338.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/smcdl/" target="_blank">teddy</a> 2009-12-09 21:49 <a href="http://www.aygfsteel.com/smcdl/archive/2009/12/09/305338.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Oracle Distinct娉ㄦ剰浜嬮」</title><link>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260895.html</link><dc:creator>teddy</dc:creator><author>teddy</author><pubDate>Thu, 19 Mar 2009 12:49:00 GMT</pubDate><guid>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260895.html</guid><wfw:comment>http://www.aygfsteel.com/smcdl/comments/260895.html</wfw:comment><comments>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260895.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/smcdl/comments/commentRss/260895.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/smcdl/services/trackbacks/260895.html</trackback:ping><description><![CDATA[鍦ㄤ嬌鐢―istinct鏃訛紝涓嶈兘鐩存帴瀵筩ount鎿嶄綔錛岄渶瑕侀�氳繃瀛愭煡璇㈡潵瀹炵幇錛屽涓?br />
select count(1) from (select distinct * from table_name)<br />
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<img src ="http://www.aygfsteel.com/smcdl/aggbug/260895.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/smcdl/" target="_blank">teddy</a> 2009-03-19 20:49 <a href="http://www.aygfsteel.com/smcdl/archive/2009/03/19/260895.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Oracle鏁版嵁搴撳緩绔婼ynonym</title><link>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260894.html</link><dc:creator>teddy</dc:creator><author>teddy</author><pubDate>Thu, 19 Mar 2009 12:48:00 GMT</pubDate><guid>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260894.html</guid><wfw:comment>http://www.aygfsteel.com/smcdl/comments/260894.html</wfw:comment><comments>http://www.aygfsteel.com/smcdl/archive/2009/03/19/260894.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/smcdl/comments/commentRss/260894.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/smcdl/services/trackbacks/260894.html</trackback:ping><description><![CDATA[<font face="Verdana" size="2">閫氳繃dblink鏌ヨ琛?nbsp; </font><font face="Verdana" size="2">select * from <a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#97;&#112;&#112;&#115;&#46;&#99;&#117;&#120;&#95;&#112;&#114;&#109;&#95;&#115;&#112;&#95;&#118;&#101;&#110;&#100;&#111;&#114;&#95;&#118;&#64;&#112;&#114;&#109;&#101;&#114;&#112;">schema_name.table_or_view_name@dblink</a></font><br />
<font face="Verdana" size="2">寤虹珛Synonym &nbsp;&nbsp;&nbsp; create synonym synonym_name for schema_name<a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#97;&#112;&#112;&#115;&#46;&#99;&#117;&#120;&#95;&#112;&#114;&#109;&#95;&#100;&#101;&#112;&#97;&#114;&#116;&#109;&#101;&#110;&#116;&#95;&#118;&#64;&#112;&#114;&#109;&#101;&#114;&#112;">.table_or_view_name@dblink</a><br />
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</font>
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