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	<title>惜分飞 &#187; ORA-01122 ORA-01200</title>
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		<title>ORA-01122 ORA-01200故障处理</title>
		<link>https://www.xifenfei.com/2023/07/ora-01122-ora-01200.html</link>
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		<pubDate>Tue, 04 Jul 2023 08:57:04 +0000</pubDate>
		<dc:creator><![CDATA[惜分飞]]></dc:creator>
				<category><![CDATA[非常规恢复]]></category>
		<category><![CDATA[ORA-01122 ORA-01200]]></category>
		<category><![CDATA[ORA-01200]]></category>

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<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/2023/07/ora-01122-ora-01200.html" target="_blank">ORA-01122 ORA-01200故障处理</a></p>
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<p>由于某种原因客户的数据库启动报ORA-01122 ORA-01200错误<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2023/07/ORA-01200.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2023/07/ORA-01200.jpg" alt="ORA-01200" width="1324" height="317" class="alignnone size-full wp-image-10357" /></a><br />
<hr />
让客户把system01.dbf文件发给我进行分析,发现system01.dbf文件大于32G(在8k的blocksize库中,默认情况system01.dbf文件不会超过32G),这个明显异常<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2023/07/system01.dbf_.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2023/07/system01.dbf_.jpg" alt="system01.dbf" width="415" height="275" class="alignnone size-full wp-image-10358" /></a><br />
<hr />
检测坏块情况发现4096000之后的block全部为全0块<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165111.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165111.jpg" alt="20230704165111" width="815" height="668" class="alignnone size-full wp-image-10359" /></a><br />
<hr />
通过bbed分析文件头记录文件大小<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165343.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165343.jpg" alt="20230704165343" width="519" height="286" class="alignnone size-full wp-image-10360" /></a><br />
<hr />
通过bbed修改合适的值,并且把文件截取到适当大小,提供system文件给客户,直接启动库成功,实现数据库完美恢复<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165533.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2023/07/20230704165533.jpg" alt="20230704165533" width="935" height="664" class="alignnone size-full wp-image-10361" /></a><br />
<hr />
通过设置文件头大小和截断合适大小实现本次数据库恢复,以前有过类似恢复:<br />
<a href="https://www.xifenfei.com/2013/05/bbed%e5%a4%84%e7%90%86ora-01200%e6%95%85%e9%9a%9c.html" title="bbed处理ORA-01200故障">bbed处理ORA-01200故障</a></p>
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