chap14_2.html

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face="verdana,helvetica" size="1" color="000000">JARS</font></a><br>  <a href="http://www.javascripts.com"><font face="verdana,helvetica" size="1" color="000000">JavaScripts.com</font></a><br>  <a href="http://www.opensourceit.com"><font face="verdana,helvetica" size="1" color="000000">open source IT</font></a><br>  <a href="http://www.roadcoders.com"><font face="verdana,helvetica" size="1" color="000000">RoadCoders</font></a><br>  <a href="http://www.Y2Kinfo.com"><font face="verdana,helvetica" size="1" color="000000">Y2K Info</font></a></FONT></td><!--End Left Navigation column --><!-- spacer column  --><TD width="40"><img src="../../../images/dotclear.gif" WIDTH="40" HEIGHT="1" border=0></TD><!--Begin Content Column --><TD VALIGN="TOP" width="500"><P><blockquote><p><b><font size="+1">14.2	How do I匲se EXPLAIN PLAN to analyze query execution paths?</font></b><p><B>Problem</B><p>Some of the queries issued against my database do not seem to perform acceptably. I want to use the EXPLAIN PLAN statement to determine what physical operations Oracle8 is using to execute these queries. How do I analyze a query using EXPLAIN PLAN?Technique<p>When DBAs and developers use the EXPLAIN PLAN statement with an SQL statement, Oracle8 reports the statement抯 execution path. This is the sequence of physical operations that Oracle8 uses to execute the statement.
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