﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-豆  地-随笔分类-数据库</title><link>http://www.blogjava.net/fuwei2241/category/15879.html</link><description>豆豆自己会说话！</description><language>zh-cn</language><lastBuildDate>Fri, 02 Mar 2007 06:24:54 GMT</lastBuildDate><pubDate>Fri, 02 Mar 2007 06:24:54 GMT</pubDate><ttl>60</ttl><item><title>不但会写还要写好代码之一:oracle SQL性能优化</title><link>http://www.blogjava.net/fuwei2241/archive/2006/10/01/oracleSQL.html</link><dc:creator>扁豆</dc:creator><author>扁豆</author><pubDate>Sun, 01 Oct 2006 06:20:00 GMT</pubDate><guid>http://www.blogjava.net/fuwei2241/archive/2006/10/01/oracleSQL.html</guid><wfw:comment>http://www.blogjava.net/fuwei2241/comments/73133.html</wfw:comment><comments>http://www.blogjava.net/fuwei2241/archive/2006/10/01/oracleSQL.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/fuwei2241/comments/commentRss/73133.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/fuwei2241/services/trackbacks/73133.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 我们要做到不但会写SQL,还要做到写出性能优良的SQL,以下为笔者学习、摘录、并汇总部分资料与大家分享！																		（1）      												选择最有效率的表名顺序						(						只在基于规则的优化器中有效						)						：														ORACLE						的解析器按照...&nbsp;&nbsp;<a href='http://www.blogjava.net/fuwei2241/archive/2006/10/01/oracleSQL.html'>阅读全文</a><img src ="http://www.blogjava.net/fuwei2241/aggbug/73133.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/fuwei2241/" target="_blank">扁豆</a> 2006-10-01 14:20 <a href="http://www.blogjava.net/fuwei2241/archive/2006/10/01/oracleSQL.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>