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	<title>general_log &#8211; 21點情報網</title>
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		<title>MySQL開啟查詢語法紀錄</title>
		<link>https://ailog.tw/lifelog/2023/03/25/mysql-cmd-log/</link>
		
		<dc:creator><![CDATA[blackjack]]></dc:creator>
		<pubDate>Sat, 25 Mar 2023 09:23:53 +0000</pubDate>
				<category><![CDATA[Database]]></category>
		<category><![CDATA[general_log]]></category>
		<category><![CDATA[log]]></category>
		<category><![CDATA[MySQL]]></category>
		<category><![CDATA[歷史資料]]></category>
		<category><![CDATA[語法查詢]]></category>
		<guid isPermaLink="false">https://ailog.tw/lifelog/?p=15372</guid>

					<description><![CDATA[在某些除錯的情境，需要釐清或查詢MySqL 主機執行過哪些語法，所以小編今天要來介紹如何啟動MySQL的語法紀 &#8230; <p class="link-more"><a href="https://ailog.tw/lifelog/2023/03/25/mysql-cmd-log/" class="more-link">閱讀全文<span class="screen-reader-text">〈MySQL開啟查詢語法紀錄〉</span></a></p>]]></description>
										<content:encoded><![CDATA[<p><span style="font-family: verdana, geneva; font-size: 14pt;">在某些除錯的情境，需要釐清或查詢MySqL 主機執行過哪些語法，所以小編今天要來介紹如何啟動MySQL的語法紀錄，並搜尋記錄中的語法紀錄。<span id="more-15372"></span></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">確認 general_log 參數是否啟用：</span></p>
<pre class="code">SHOW VARIABLES LIKE 'general_log%';</pre>
<p><span style="font-family: verdana, geneva; font-size: 14pt;"><img fetchpriority="high" decoding="async" class="alignnone wp-image-15374 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log01.png" alt="" width="362" height="159" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log01.png 362w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log01-300x132.png 300w" sizes="(max-width: 362px) 100vw, 362px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">若 general_log 尚未啟用，則可透過以下語法啟用：</span></p>
<pre class="code">SET global general_log = 'ON';
SET global log_output = 'table';</pre>
<p><span style="font-family: verdana, geneva; font-size: 14pt;"><img decoding="async" class="alignnone wp-image-15375 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log02.png" alt="" width="316" height="100" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log02.png 316w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log02-300x95.png 300w" sizes="(max-width: 316px) 100vw, 316px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">再次確認 general_log 參數是否啟</span><span style="font-family: verdana, geneva; font-size: 14pt;">用：</span></p>
<pre class="code">SHOW VARIABLES LIKE 'general_log%';</pre>
<p><span style="font-family: verdana, geneva; font-size: 14pt;"><img decoding="async" class="alignnone wp-image-15376 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log03.png" alt="" width="431" height="168" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log03.png 431w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log03-300x117.png 300w" sizes="(max-width: 431px) 100vw, 431px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">查詢MYSQL紀錄中有執行過什麼語法：</span></p>
<pre class="code">SELECT event_time, user_host, command_type, argument FROM mysql.general_log;</pre>
<p><span style="font-family: verdana, geneva; font-size: 14pt;"><img loading="lazy" decoding="async" class="alignnone wp-image-15377 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log04.png" alt="" width="627" height="250" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log04.png 627w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/mysql-cmd-log04-300x120.png 300w" sizes="auto, (max-width: 627px) 100vw, 627px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">若已不需要log語法，請記得關閉，避免資料庫使用空間飛速成長。</span><br />
<span style="font-family: verdana, geneva; font-size: 14pt;">透過以下語法關閉general_log ：</span></p>
<pre class="code">SET global general_log = 'OFF';</pre>
<p>&nbsp;</p>
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