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	<title>Sybase数据库技术，数据库恢复专家 &#187; 表扫描</title>
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		<title>ASE查看表扫描的一种方法</title>
		<link>https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm</link>
		<comments>https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm#comments</comments>
		<pubDate>Sat, 07 Dec 2013 15:13:24 +0000</pubDate>
		<dc:creator>dbainfo</dc:creator>
				<category><![CDATA[Sybase ASE]]></category>
		<category><![CDATA[表扫描]]></category>

		<guid isPermaLink="false">http://www.dbainfo.net/?p=2449</guid>
		<description><![CDATA[1)&#160;&#160;&#160; 打开抽象查询计划备份 sp_configure &#34;abstract plan dump&#34;,1 2)&#160;&#160;&#160; 查找表扫描的语句 sp_find_qplan &#39;%t_scan%&#39; 或者 use db_name go select a.id,a.hashkey,a.text from sysqueryplans a inner join sysqueryplans b on a.id=b.id and a.hashkey=b.hashkey where a.type=10 and b.text like &#39;%t_scan%&#39; 3)&#160;&#160;&#160; 查看语句的查询计划 根据上面步骤中得到的SQL ID，执行sp_help_qplan @id 4)&#160;&#160;&#160; 关闭抽象查询计划备份 sp_configure &#34;abstract plan dump&#34;,0 &#160; 本文链接地址：https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm； 本文为dbainfo个人原创，请在尊重作者劳动成果的前提下进行转载； 转载务必注明原始出处 : Sybase数据库技术，数据库恢复专家； 对《ASE查看表扫描的一种方法》有何疑问或见解，请在本文下方发表； 对网站还有其他问题或建议，请提交在留言板，谢谢！ 随机日志2014-12-20 -- Sybase [...]]]></description>
			<content:encoded><![CDATA[<p><span style="font-size:14px;">1)&nbsp;&nbsp;&nbsp; 打开抽象查询计划备份</span><br />
	sp_configure &quot;abstract plan dump&quot;,1</p>
<p><span style="font-size:14px;">2)&nbsp;&nbsp;&nbsp; 查找表扫描的语句</span><br />
	sp_find_qplan &#39;%t_scan%&#39;<br />
	或者<br />
	use db_name<br />
	go<br />
	select a.id,a.hashkey,a.text<br />
	from sysqueryplans a<br />
	inner join sysqueryplans b on a.id=b.id and a.hashkey=b.hashkey<br />
	where a.type=10 <br />
	and b.text like &#39;%t_scan%&#39;</p>
<p><span style="font-size:14px;">3)&nbsp;&nbsp;&nbsp; 查看语句的查询计划</span><br />
	根据上面步骤中得到的SQL ID，执行sp_help_qplan @id</p>
<p><span style="font-size:14px;">4)&nbsp;&nbsp;&nbsp; 关闭抽象查询计划备份</span><br />
	sp_configure &quot;abstract plan dump&quot;,0<br />
	&nbsp;</p>
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<li>本文链接地址：<a href="https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm">https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm</a>；</li>
<li>本文为dbainfo个人原创，请在尊重作者劳动成果的前提下进行转载；</li>
<li>转载务必注明原始出处 : <a href="https://www.dbainfo.net/">Sybase数据库技术，数据库恢复专家</a>；</li>
<li>对《<a href="https://www.dbainfo.net/ase-find-table-scan-by-abstract-plan-dump.htm">ASE查看表扫描的一种方法</a>》有何疑问或见解，请在本文下方发表；</li>
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