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	<title>ハセテツラボ &#187; 日付関数</title>
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		<title>MySQLで前月、来月、三日前等の日付を求める</title>
		<link>http://tt-house.com/2008/05/mysql-1.html</link>
		<comments>http://tt-house.com/2008/05/mysql-1.html#comments</comments>
		<pubDate>Mon, 05 May 2008 16:43:22 +0000</pubDate>
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				<category><![CDATA[MySQL]]></category>
		<category><![CDATA[SQL]]></category>
		<category><![CDATA[日付関数]]></category>

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		<description><![CDATA[select adddate(now(), interval- 3 month...]]></description>
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<blockquote style="margin-right: 0px;" dir="ltr"><p>select adddate(now(), interval- 3 month);</p></blockquote>
<p>これで、3ヶ月前の日付が得られる。引数は前から<br />
<em>「基準日、差分、単位」<br />
</em>となっている。</p>
<p>year,day,hour等も利用可能。</p>

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