锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲电影小说图,一二三四区在线观看,国产精品成人一区二区三区http://www.aygfsteel.com/the263/eclipsezh-cnTue, 17 Jun 2025 05:00:26 GMTTue, 17 Jun 2025 05:00:26 GMT60sql 閫氶厤絎﹀繀鐭?/title><link>http://www.aygfsteel.com/the263/archive/2009/05/25/277861.html</link><dc:creator>washington</dc:creator><author>washington</author><pubDate>Mon, 25 May 2009 09:49:00 GMT</pubDate><guid>http://www.aygfsteel.com/the263/archive/2009/05/25/277861.html</guid><wfw:comment>http://www.aygfsteel.com/the263/comments/277861.html</wfw:comment><comments>http://www.aygfsteel.com/the263/archive/2009/05/25/277861.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/the263/comments/commentRss/277861.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/the263/services/trackbacks/277861.html</trackback:ping><description><![CDATA[<table cellspacing="0" cellpadding="0" width="100%" border="0">
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<h3 class="docSection1Title">Tips for Using Wildcards</h3>
<p class="docText">As you can see, SQL's wildcards are extremely powerful. But that power comes with a price: Wildcard searches typically take far longer to process than any other search types discussed previously. Here are some tips to keep in mind when using wildcards:</p>
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<li>
<p class="docList">Don't overuse wildcards. If another search operator will do, use it instead.</p>
<li>
<p class="docList">When you do use wildcards, try to not use them at the beginning of the search pattern unless absolutely necessary. Search patterns that begin with wildcards are the slowest to process.</p>
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<p class="docList">Pay careful attention to the placement of the wildcard symbols. If they are misplaced, you might not return the data you intended.</p>
</li>
</ul>
<p class="docText">Having said that, wildcards are an important and useful search tool, and one that you will use frequently.</p>
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<p>浣跨敤閫氶厤絎︾殑寤鴻<br />
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濡備綘鎵鏂欙紝SQL鐨勯氶厤絎︽槸闈炲父寮哄ぇ鐨勩備絾鏄繖縐嶅己澶ф槸寤虹珛鍦細(xì)姣斿叾浠栫被鍨嬬殑鎼滅儲(chǔ)嫻垂鏇村鐨勫鐞嗗櫒鍗犵敤涓婄殑銆?br />
鍦ㄨ繖閲屾湁涓浜涗嬌鐢ㄩ氶厤絎︾殑寤鴻甯屾湜澶у鑳借浣忥細(xì)<br />
·灝介噺鐢ㄥ叾瀹冪殑鎼滅儲(chǔ)鎿嶄綔錛屼唬鏇塊氶厤絎︼紱<br />
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鍐嶉噸鐢充竴嬈★紝閫氶厤絎︽槸涓涓噸瑕佸茍鏈夌敤鐨勬悳绱㈠伐鍏鳳紝浣犲皢浼?xì)闈炲笖R綣佺殑浣跨敤瀹冦?/p>
<img src ="http://www.aygfsteel.com/the263/aggbug/277861.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/the263/" target="_blank">washington</a> 2009-05-25 17:49 <a href="http://www.aygfsteel.com/the263/archive/2009/05/25/277861.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>杞箟瀛楃搴忓垪\uhttp://www.aygfsteel.com/the263/archive/2008/01/09/174000.htmlwashingtonwashingtonWed, 09 Jan 2008 06:41:00 GMThttp://www.aygfsteel.com/the263/archive/2008/01/09/174000.htmlhttp://www.aygfsteel.com/the263/comments/174000.htmlhttp://www.aygfsteel.com/the263/archive/2008/01/09/174000.html#Feedback0http://www.aygfsteel.com/the263/comments/commentRss/174000.htmlhttp://www.aygfsteel.com/the263/services/trackbacks/174000.html
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