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	<title>Read ERN &#187; nologging</title>
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		<title>[重发]如何真正NOLOGGING</title>
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		<comments>http://www.readern.com/oracle-nologging.html#comments</comments>
		<pubDate>Wed, 09 Sep 2009 00:40:18 +0000</pubDate>
		<dc:creator>ern</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[nologging]]></category>

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		<description><![CDATA[旧文重发，原文发表于2007年2月1日。 从前几天bigboar要做一个大表更新的项目引发的讨论，CTAS还是INSERT产生redo多。后来在fsm启发下又复习了遍Tom的结论。具体内容就不翻译了，转贴一下： Table Mode    Insert Mode     ArchiveLog mode      result &#8212;&#8212;&#8212;&#8211;   &#8212;&#8212;&#8212;&#8212;-   &#8212;&#8212;&#8212;&#8212;&#8212;&#8211;    &#8212;&#8212;&#8212;- LOGGING       APPEND          ARCHIVE LOG          redo generated NOLOGGING     APPEND          ARCHIVE LOG          no redo LOGGING       no append       &#8220;&#8221;                   redo generated NOLOGGING     no append       &#8220;&#8221;                   redo generated LOGGING       APPEND          noarchive log mode   no redo NOLOGGING     APPEND          noarchive log mode   no redo LOGGING       no append       noarchive [...]]]></description>
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