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	<title>Comments on: DBMS_XPLAN Format Parameters</title>
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	<description>Miscellaneous Random Oracle Topics: Stop, Think, ... Understand</description>
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		<title>By: DBMS_XPLAN.DISPLAY_CURSOR &#171; Oracle Diagnostician</title>
		<link>http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/#comment-4681</link>
		<dc:creator><![CDATA[DBMS_XPLAN.DISPLAY_CURSOR &#171; Oracle Diagnostician]]></dc:creator>
		<pubDate>Mon, 14 May 2012 05:16:27 +0000</pubDate>
		<guid isPermaLink="false">http://hoopercharles.wordpress.com/?p=1528#comment-4681</guid>
		<description><![CDATA[[...] won&#8217;t go into details of all parameters (you can find a good description in a great post by Charles Hoopers or in online official Oracle documentation), I&#8217;ll just list a few most useful parameter [...]]]></description>
		<content:encoded><![CDATA[<p>[...] won&#8217;t go into details of all parameters (you can find a good description in a great post by Charles Hoopers or in online official Oracle documentation), I&#8217;ll just list a few most useful parameter [...]</p>
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	<item>
		<title>By: Blogroll Report 26/02/2010 – 05/03/2010 &#171; Coskan&#8217;s Approach to Oracle</title>
		<link>http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/#comment-558</link>
		<dc:creator><![CDATA[Blogroll Report 26/02/2010 – 05/03/2010 &#171; Coskan&#8217;s Approach to Oracle]]></dc:creator>
		<pubDate>Thu, 25 Mar 2010 13:49:46 +0000</pubDate>
		<guid isPermaLink="false">http://hoopercharles.wordpress.com/?p=1528#comment-558</guid>
		<description><![CDATA[[...] 16-dbms_xplan format parameters with examples  Charles Hooper-DBMS_XPLAN Format parameters  [...]]]></description>
		<content:encoded><![CDATA[<p>[...] 16-dbms_xplan format parameters with examples  Charles Hooper-DBMS_XPLAN Format parameters  [...]</p>
]]></content:encoded>
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	<item>
		<title>By: Charles Hooper</title>
		<link>http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/#comment-552</link>
		<dc:creator><![CDATA[Charles Hooper]]></dc:creator>
		<pubDate>Wed, 24 Mar 2010 02:55:37 +0000</pubDate>
		<guid isPermaLink="false">http://hoopercharles.wordpress.com/?p=1528#comment-552</guid>
		<description><![CDATA[Coskan,

I see that Jonathan Lewis mentioned the ADVANCED format and the OUTLINE format in a blog article a couple of years ago:
http://jonathanlewis.wordpress.com/2008/03/06/dbms_xplan3/

Thanks for bringing that format parameter to my attention.

Sorry to hear about your test DB being corrupted.  Table T1 is the same table T1 found at the start of Chapter 8 of the Expert Oracle Practices book.  The table is fairly large, and the index has such a high clustering factor that it only makes sense to use the index for very small percentages of the table (say less than 0.06% of the table).  I wanted to see what impact parallel query would have on the speed of the full table scan.  

The good news is that once you have the table T1 built you will be able to test that section of the book to see if a lower buffer cache hit ratio may be better than a higher buffer cache hit ratio.  :-)]]></description>
		<content:encoded><![CDATA[<p>Coskan,</p>
<p>I see that Jonathan Lewis mentioned the ADVANCED format and the OUTLINE format in a blog article a couple of years ago:<br />
<a href="http://jonathanlewis.wordpress.com/2008/03/06/dbms_xplan3/" rel="nofollow">http://jonathanlewis.wordpress.com/2008/03/06/dbms_xplan3/</a></p>
<p>Thanks for bringing that format parameter to my attention.</p>
<p>Sorry to hear about your test DB being corrupted.  Table T1 is the same table T1 found at the start of Chapter 8 of the Expert Oracle Practices book.  The table is fairly large, and the index has such a high clustering factor that it only makes sense to use the index for very small percentages of the table (say less than 0.06% of the table).  I wanted to see what impact parallel query would have on the speed of the full table scan.  </p>
<p>The good news is that once you have the table T1 built you will be able to test that section of the book to see if a lower buffer cache hit ratio may be better than a higher buffer cache hit ratio.  <img src='http://s0.wp.com/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
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	<item>
		<title>By: coskan</title>
		<link>http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/#comment-550</link>
		<dc:creator><![CDATA[coskan]]></dc:creator>
		<pubDate>Wed, 24 Mar 2010 02:26:56 +0000</pubDate>
		<guid isPermaLink="false">http://hoopercharles.wordpress.com/?p=1528#comment-550</guid>
		<description><![CDATA[Charles,

I am not sure why it is not documented and where I found it before but using ADVANCED instead of &#039;ALLSTATS LAST +PEEKED_BINDS +PROJECTION +ALIAS +PREDICATE +COST +BYTES&#039;)  gives the same result. 


SELECT * FROM table(DBMS_XPLAN.DISPLAY_CURSOR((&#039;&amp;sql_id&#039;),&amp;child_number,&#039;Advanced&#039;))

You can also use -  operator  like Advanced -PEEKED_BINDS which is easier than ++++ and - 
Is there anything you know and can add about Advanced ? 

I could not try the second bit yet to comment about because your initial test case made my test DB corrupted, which I can only deal tomorrow (I missed the 1 hour warning:))  

Is there any specific reason for you to create that big table ?]]></description>
		<content:encoded><![CDATA[<p>Charles,</p>
<p>I am not sure why it is not documented and where I found it before but using ADVANCED instead of &#8216;ALLSTATS LAST +PEEKED_BINDS +PROJECTION +ALIAS +PREDICATE +COST +BYTES&#8217;)  gives the same result. </p>
<p>SELECT * FROM table(DBMS_XPLAN.DISPLAY_CURSOR((&#8216;&amp;sql_id&#8217;),&amp;child_number,&#8217;Advanced&#8217;))</p>
<p>You can also use &#8211;  operator  like Advanced -PEEKED_BINDS which is easier than ++++ and &#8211;<br />
Is there anything you know and can add about Advanced ? </p>
<p>I could not try the second bit yet to comment about because your initial test case made my test DB corrupted, which I can only deal tomorrow (I missed the 1 hour warning:))  </p>
<p>Is there any specific reason for you to create that big table ?</p>
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	</item>
	<item>
		<title>By: Tony Johnson</title>
		<link>http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/#comment-434</link>
		<dc:creator><![CDATA[Tony Johnson]]></dc:creator>
		<pubDate>Mon, 01 Mar 2010 16:43:32 +0000</pubDate>
		<guid isPermaLink="false">http://hoopercharles.wordpress.com/?p=1528#comment-434</guid>
		<description><![CDATA[Charles,

Thanks for the great overview, examples and compilation of this very basic but important Oracle function.]]></description>
		<content:encoded><![CDATA[<p>Charles,</p>
<p>Thanks for the great overview, examples and compilation of this very basic but important Oracle function.</p>
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