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	<title>Comments on: Invisible Indexes and Locks</title>
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		<title>By: Book Review: Oracle Database 11g Performance Tuning Recipes &#171; Charles Hooper&#039;s Oracle Notes</title>
		<link>http://www.antognini.ch/2008/10/invisible-indexes-and-locks/#comment-86</link>
		<dc:creator>Book Review: Oracle Database 11g Performance Tuning Recipes &#171; Charles Hooper&#039;s Oracle Notes</dc:creator>
		<pubDate>Sat, 10 Sep 2011 21:13:33 +0000</pubDate>
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		<description>[...] not a complete/safe test to determine whether or not an index may be safely dropped. (pages 70-71 reference [...] </description>
		<content:encoded><![CDATA[<p>[...] not a complete/safe test to determine whether or not an index may be safely dropped. (pages 70-71 reference [...] </p>
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		<title>By: Book Review: Pro Oracle SQL &#171; Charles Hooper&#039;s Oracle Notes</title>
		<link>http://www.antognini.ch/2008/10/invisible-indexes-and-locks/#comment-85</link>
		<dc:creator>Book Review: Pro Oracle SQL &#171; Charles Hooper&#039;s Oracle Notes</dc:creator>
		<pubDate>Mon, 17 Jan 2011 06:06:22 +0000</pubDate>
		<guid isPermaLink="false">http://antognini.ch/?p=54#comment-85</guid>
		<description>[...] invisible indexes may be used by the optimizer to more accurately determine cardinality estimates (reference [...] </description>
		<content:encoded><![CDATA[<p>[...] invisible indexes may be used by the optimizer to more accurately determine cardinality estimates (reference [...] </p>
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		<title>By: Surachart Opun</title>
		<link>http://www.antognini.ch/2008/10/invisible-indexes-and-locks/#comment-84</link>
		<dc:creator>Surachart Opun</dc:creator>
		<pubDate>Thu, 03 Dec 2009 04:18:31 +0000</pubDate>
		<guid isPermaLink="false">http://antognini.ch/?p=54#comment-84</guid>
		<description>It&#039;s a good example &amp; idea to use invisible index with FOREIGN KEY.</description>
		<content:encoded><![CDATA[<p>It&#8217;s a good example &amp; idea to use invisible index with FOREIGN KEY.</p>
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		<title>By: Visible Invisible Indexes (The Invisible Band) &#171; Richard Foote&#8217;s Oracle Blog</title>
		<link>http://www.antognini.ch/2008/10/invisible-indexes-and-locks/#comment-83</link>
		<dc:creator>Visible Invisible Indexes (The Invisible Band) &#171; Richard Foote&#8217;s Oracle Blog</dc:creator>
		<pubDate>Thu, 20 Nov 2008 11:57:01 +0000</pubDate>
		<guid isPermaLink="false">http://antognini.ch/?p=54#comment-83</guid>
		<description>[...] a comment on the above post by Michael Sorensen mentions a nice post by Christian Antognini in which he demonstrates how so-called Invisible Indexes on Foreign Keys can still be used by [...] </description>
		<content:encoded><![CDATA[<p>[...] a comment on the above post by Michael Sorensen mentions a nice post by Christian Antognini in which he demonstrates how so-called Invisible Indexes on Foreign Keys can still be used by [...] </p>
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	<item>
		<title>By: Asif Momen</title>
		<link>http://www.antognini.ch/2008/10/invisible-indexes-and-locks/#comment-82</link>
		<dc:creator>Asif Momen</dc:creator>
		<pubDate>Fri, 17 Oct 2008 10:02:47 +0000</pubDate>
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		<description>Well demonstrated.</description>
		<content:encoded><![CDATA[<p>Well demonstrated.</p>
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