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	<title>Blog @民工甲 &#187; SQL</title>
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		<title>SQL语句按多个条件排序 order by</title>
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		<pubDate>Sun, 21 Feb 2010 11:25:46 +0000</pubDate>
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		<category><![CDATA[SQL]]></category>

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		<description><![CDATA[数据表示例： id—sort 1      a 2      b 3      a 4      b 5      a 期望查询结果：按sort分类、排序，再按id排序 id—sort 1     a 3     a 5     a 2     b 4     b 正确的sql语句：select * from table order by sort,id  注：在order by之后最多可加16个字段名]]></description>
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