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			    <title>sxp03的个人空间</title>
			    <link>http://space.itpub.net/540962</link>
			    <description></description>
			    <copyright>Copyright(C) sxp03的个人空间</copyright>
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			    <lastBuildDate>Tue, 09 Sep 2008 00:49:03 GMT</lastBuildDate><item>
								<title>Oracle中大批量删除数据的方法</title>
								<link>http://space.itpub.net/540962/viewspace-419059</link>
								<description><![CDATA[批量删除海量数据通常都是很复杂及缓慢的，方法也很多，但是通常的概念是:分批删除，逐次提交。<BR>下面是我的删除过程，我的数据表可以通过主键删除，测试过Delete和For all两种方法，for all在这里并没有带来性能提高，所以仍然选择了批量直接删除。<BR><BR>首先创建一下...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Tue, 05 Aug 2008 16:23:52 GMT</pubDate>
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								<title>SQL 中 Delete、Truncate、Drop</title>
								<link>http://space.itpub.net/540962/viewspace-416195</link>
								<description><![CDATA[相同点：<BR>　　truncate 和不带 where 子句的 delete，以及 drop 都会删除表内的数据 <BR>　　不同点：<BR>　　1. truncate 和 delete 只删除数据不删除表的结构(定义) <BR>　　 drop 语句将删除表的结构被依赖的约束(constrain)、触发器(trigger)、索引(index)；依赖于...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Thu, 31 Jul 2008 14:37:46 GMT</pubDate>
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								<title>如何查看javacore和heapdump文件</title>
								<link>http://space.itpub.net/540962/viewspace-369047</link>
								<description><![CDATA[<P>一.查看javacore文件</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp; 1.下载ThreadDumpAnalyser，graphviz，svgviewer</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp; 2.运行runall.bat javacore.txt，会产生三个文件dumps.xml,locktree1.svg,sidebyside.html</P>
<P>二.查看heapdump文件</P>...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Thu, 03 Jul 2008 16:00:47 GMT</pubDate>
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								<title>vmstat与iostat输出结果详解 -- 转载</title>
								<link>http://space.itpub.net/540962/viewspace-321757</link>
								<description><![CDATA[<DIV id=art style="MARGIN: 15px">
<P><FONT face=Verdana>各种unix平台下iostat与vmstst说明</FONT></P>
<P><FONT face="verdana, arial, helvetica" size=2><SPAN class=javascript. id=text5569897 style="FONT-SIZE: 12px">一点个人积累，共享出来！<BR><BR><FONT ...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Wed, 28 May 2008 09:47:28 GMT</pubDate>
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							<item>
								<title>oracle常用命令</title>
								<link>http://space.itpub.net/540962/viewspace-206159</link>
								<description><![CDATA[<P>一、ORACLE的启动和关闭<BR>1、在单机环境下<BR>要想启动或关闭ORACLE系统必须首先切换到ORACLE用户，如下<BR>su - oracle</P>
<P>a、启动ORACLE系统<BR>oracle&gt;svrmgrl<BR>SVRMGR&gt;connect internal<BR>SVRMGR&gt;startup<BR>SVRMGR&gt;quit</P>
<P>b、关闭ORA...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Thu, 13 Mar 2008 17:24:27 GMT</pubDate>
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								<title>个人所得税计算器</title>
								<link>http://space.itpub.net/540962/viewspace-206138</link>
								<description><![CDATA[<P>看到一个个人所得税计算器,挺好玩的。</P>
<P><A href="http://windtear.net/2008/02/personal_income_tax_calculator_2008v1.html">http://windtear.net/2008/02/personal_income_tax_calculator_2008v1.html</A></P>]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Thu, 13 Mar 2008 14:02:06 GMT</pubDate>
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								<title>取oracle系统的当前时间</title>
								<link>http://space.itpub.net/540962/viewspace-203942</link>
								<description><![CDATA[<P>-----------------------------------------------------------------------------------------------------</P>
<P>select sysdate from dual;<BR>&nbsp;&nbsp;<BR>Select&nbsp; to_char(SYSDATE，'MM-DD-YYYY HH24:MI:SS') &nbsp;"now"&nbsp; from dual;</P>
<P>--...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Tue, 11 Mar 2008 15:49:00 GMT</pubDate>
							</item>
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								<title>Oracle基于时间点的恢复</title>
								<link>http://space.itpub.net/540962/viewspace-203931</link>
								<description><![CDATA[<P>这个实验是用EYGLE网站上的,通过它来学习基于时间点的恢复.</P>
<P>Oracle基于时间点的恢复能够精确到什么样的精度?<BR>这是一个需要关心的问题。</P>
<P>以下测试用于进行一点说明。</P>
<P>1.首先做好冷备份<BR>2.创建测试数据</P>
<P>-------------------------...]]></description>
								<category>blog</category>
								<author>sxp03</author>
								<pubDate>Tue, 11 Mar 2008 14:30:24 GMT</pubDate>
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