<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>惜分飞 &#187; 20907061</title>
	<atom:link href="https://www.xifenfei.com/tag/20907061/feed" rel="self" type="application/rss+xml" />
	<link>https://www.xifenfei.com</link>
	<description>提供7*24专业数据库(Oracle,SQL Server,MySQL,PostgreSQL等)恢复和技术支持@Tel:17813235971</description>
	<lastBuildDate>Thu, 29 Oct 2026 15:31:46 +0000</lastBuildDate>
	<language>zh-CN</language>
		<sy:updatePeriod>hourly</sy:updatePeriod>
		<sy:updateFrequency>1</sy:updateFrequency>
	
	<item>
		<title>select default$ from col$ where rowid=:1 大量解析</title>
		<link>https://www.xifenfei.com/2019/08/select-default-from-col-where-rowid.html</link>
		<comments>https://www.xifenfei.com/2019/08/select-default-from-col-where-rowid.html#comments</comments>
		<pubDate>Mon, 26 Aug 2019 13:40:23 +0000</pubDate>
		<dc:creator><![CDATA[惜分飞]]></dc:creator>
				<category><![CDATA[ORACLE 12C]]></category>
		<category><![CDATA[Oracle Bug]]></category>
		<category><![CDATA[20907061]]></category>
		<category><![CDATA[47r1y8yn34jmj]]></category>

		<guid isPermaLink="false">https://www.xifenfei.com/?p=8203</guid>
		<description><![CDATA[联系：手机/微信(+86 17813235971) QQ(107644445)  &#8230; <a href="https://www.xifenfei.com/2019/08/select-default-from-col-where-rowid.html">继续阅读 <span class="meta-nav">&#8594;</span></a>]]></description>
				<content:encoded><![CDATA[<div id="xifenfeicopyright">
<p>联系：<a href="https://www.xifenfei.com/about_xifenfei" target="_blank">手机/微信(+86 17813235971)   QQ(107644445)</a><a target="_blank" href="http://wpa.qq.com/msgrd?v=3&#038;uin=107644445&#038;site=qq&#038;menu=yes"><img src="https://www.xifenfei.com/wp-content/themes/img/site_qq.jpg" alt="QQ咨询惜分飞" title="QQ咨询惜分飞"/></a></p>
<p>标题：<a href="https://www.xifenfei.com/2019/08/select-default-from-col-where-rowid.html" target="_blank">select default$ from col$ where rowid=:1 大量解析</a></p>
<p>作者：<a href="https://www.xifenfei.com" target="_blank">惜分飞</a>©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]</p>
</div>
<p>在一个12.1.0.2的库的awr中发现大量47r1y8yn34jmj语句的解析<br />
<a href="//www.xifenfei.com/wp-content/uploads/2019/08/47r1y8yn34jmj.png"><img src="//www.xifenfei.com/wp-content/uploads/2019/08/47r1y8yn34jmj.png" alt="47r1y8yn34jmj" width="1075" height="163" class="alignnone size-full wp-image-8204" /></a><br />
<hr />
对应的完整sql为:select default$ from col$ where rowid=:1,按道理说正常的库不应该出现大量该类sql的解析,查询mos发现相关Bug 20907061 : HIGH # OF EXECUTIONS FOR RECURSIVE CALL ON COL$<br />
 <a href="//www.xifenfei.com/wp-content/uploads/2019/08/20907061.png"><img src="//www.xifenfei.com/wp-content/uploads/2019/08/20907061.png" alt="20907061" width="943" height="712" class="alignnone size-full wp-image-8205" /></a><br />
<hr />
<div id="crp_related"><ul><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/07/savemydataqq-com-recovery.html" rel="bookmark" class="crp_title">savemydata@qq.com加密数据库恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/11/oracle-dmp-is-encrypted-recovery.html" rel="bookmark" class="crp_title">oracle dmp被加密恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/11/sql-server-delete-recovery.html" rel="bookmark" class="crp_title">SQL Server delete恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/11/sql-server-drop-recovery.html" rel="bookmark" class="crp_title">SQL Server drop table 恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/05/id-decrypt.html" rel="bookmark" class="crp_title">*** ALL YOUR WORK AND PERSONAL FILES HAVE BEEN ENCRYPTED ***</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/11/file-encrypt-and-decrypt-database-recovery.html" rel="bookmark" class="crp_title">文件系统加密解密之后数据库异常处理</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/12/megac-recovery.html" rel="bookmark" class="crp_title">.megac加密恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/09/win-rman-shared-directory.html" rel="bookmark" class="crp_title">rman备份到win共享目录</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/12/xfs-rm-datafile-recovery.html" rel="bookmark" class="crp_title">xfs删除数据文件恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/12/helpservishorsefucker-org-recovery.html" rel="bookmark" class="crp_title">helpservis@horsefucker.org加密恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/11/sql-server-truncate-recovery.html" rel="bookmark" class="crp_title">SQL Server truncate table 恢复</a></li><li style="list-style-type:decimal;font-size:11px;" ><a href="https://www.xifenfei.com/2019/06/failed-parse-elapsed-time.html" rel="bookmark" class="crp_title">failed parse elapsed time过大分析案例</a></li></ul></div>]]></content:encoded>
			<wfw:commentRss>https://www.xifenfei.com/2019/08/select-default-from-col-where-rowid.html/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>
