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	<title>-Flyぁ梦- &#187; MySQL</title>
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		<title>Linux MySQL查询默认情况下不区分大小写</title>
		<link>http://blog.11034.org/2016-08/mysql_linux_ignore_case.html</link>
		<comments>http://blog.11034.org/2016-08/mysql_linux_ignore_case.html#comments</comments>
		<pubDate>Tue, 30 Aug 2016 12:50:53 +0000</pubDate>
		<dc:creator><![CDATA[-Flyぁ梦-]]></dc:creator>
				<category><![CDATA[MySQL]]></category>
		<category><![CDATA[大小写]]></category>

		<guid isPermaLink="false">http://blog.11034.org/?p=2879</guid>
		<description><![CDATA[如题，在like搜索中不区分大小写是OK的，但是用=匹配也不区分感觉就有点怪了，具体看项目看需求。此次碰到从数 [&#8230;]]]></description>
				<content:encoded><![CDATA[<p>如题，在like搜索中不区分大小写是OK的，但是用=匹配也不区分感觉就有点怪了，具体看项目看需求。此次碰到从数据库中读数据读到了大小写数据，但是代码中却是区分大小写又拦截掉了，导致数据的不一致情况出现。</p>
<p><span id="more-2879"></span></p>
<pre class="markdown_pre"><code>这样子的SQL写法可以区分大小写

mysql&gt; select * from t1 where name = binary 'YOU';</code></pre>
<p>如果不想这么麻烦而想服务一开启就让大小写一致的话，需要修改配置文件my.ini或者my.cnf<br />
[mysqld]<br />
lower_case_table_names=1（0：区分；1：不区分）</p>
<p>mysql&gt; show variables like &#8216;%case_table%';<br />
+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+<br />
| Variable_name          | Value |<br />
+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+<br />
| lower_case_table_names | 1     |<br />
+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+</p>
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