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	<title>评论：oracle mysql 语法上的不同</title>
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	<description>－－一步，二步，三步，N步，二行脚印</description>
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		<title>来自：小七</title>
		<link>http://blog.51yip.com/oracle/1321.html/comment-page-1#comment-736</link>
		<dc:creator>小七</dc:creator>
		<pubDate>Mon, 19 Sep 2011 10:14:07 +0000</pubDate>
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		<description>&quot;9，group by,在下oracle下用group by的话，group by后面的字段必须在select后面出现，不然会报错的，而mysql却不会。&quot;

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我试了下，这条好像不会报错吧？</description>
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<p>========================<br />
我试了下，这条好像不会报错吧？</p>
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