Tue, 01 Jul 2008 18:14:00 GMT-------爱技术,爱人生!http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201897/1129132/1/item.htmlcomments/2603047.aspx0comments/commentRss/2603047.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2603047<strong>ETL</strong>，<b>Extraction-Transformation-Loading</b>的缩写，中文名称为<b>数据抽取、转换和加载</b>。<br /><br />ETL负责将分布的、异构数据源中的数据如关系数据、平面数据文件等抽取到临时中间层后进行清洗、转换、集成，最后加载到数据仓库或数据集市中，成为联机分析处理、数据挖掘的基础。<br /><br />ETL是数据仓库中的非常重要的一环。它是承前启后的必要的一步。相对于关系数据库，数据仓库技术没有严格的数学理论基础，它更面向实际工程应用。所以从工程应用的角度来考虑，按着物理数据模型的要求加载数据并对数据进行一些系列处理，处理过程与经验直接相关，同时这部分的工作直接关系数据仓库中数据的质量，从而影响到联机分析处理和数据挖掘的结果的质量。<br /><br />数据仓库是一个独立的数据环境，需要通过抽取过程将数据从联机事务处理环境、外部数据源和脱机的数据存储介质导入到数据仓库中；在技术上，ETL主要涉及到关联、转换、增量、调度和监控等几个方面；数据仓库系统中数据不要求与联机事务处理系统中数据实时同步，<img src ="aggbug/2603047.aspx" width = "1" height = "1" />Wed, 02 Jul 2008 02:14:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/07/01/2603047.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/07/01/2603047.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/07/01/2603047.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201897/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201898/1129132/1/item.htmlcomments/2257403.aspx1comments/commentRss/2257403.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2257403JAVA中用正则表达式做全文查找<img src ="aggbug/2257403.aspx" width = "1" height = "1" />Mon, 07 Apr 2008 23:59:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/04/07/2257403.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/04/07/2257403.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/04/07/2257403.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201898/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201899/1129132/1/item.htmlcomments/2156099.aspx0comments/commentRss/2156099.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2156099关联、聚合、合成与依赖 <img src ="aggbug/2156099.aspx" width = "1" height = "1" />Fri, 07 Mar 2008 19:46:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/03/07/2156099.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/03/07/2156099.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/03/07/2156099.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201899/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201900/1129132/1/item.htmlcomments/2100200.aspx0comments/commentRss/2100200.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2100200Subversion服务器搭建<img src ="aggbug/2100200.aspx" width = "1" height = "1" />Sun, 17 Feb 2008 15:49:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/17/2100200.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/02/17/2100200.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/17/2100200.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201900/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201901/1129132/1/item.htmlcomments/2093569.aspx0comments/commentRss/2093569.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2093569tomcat启动jvm内存设置<img src ="aggbug/2093569.aspx" width = "1" height = "1" />Thu, 14 Feb 2008 21:09:00 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+0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/14/2093560.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/02/14/2093560.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/14/2093560.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201902/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201903/1129132/1/item.htmlcomments/2086663.aspx0comments/commentRss/2086663.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2086663持续集成<img src ="aggbug/2086663.aspx" width = "1" height = "1" />Fri, 08 Feb 2008 11:32:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/08/2086663.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/02/08/2086663.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/02/08/2086663.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201903/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201904/1129132/1/item.htmlcomments/2070010.aspx0comments/commentRss/2070010.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2070010Oracle数据库字符集问题解析<img src ="aggbug/2070010.aspx" width = "1" height = "1" />Mon, 28 Jan 2008 23:29:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2008/01/28/2070010.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2008/01/28/2070010.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2008/01/28/2070010.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201904/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201905/1129132/1/item.htmlcomments/1923185.aspx4comments/commentRss/1923185.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1923185字符，字节和编码<img src ="aggbug/1923185.aspx" width = "1" height = "1" />Sat, 08 Dec 2007 02:29:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/12/07/1923185.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/12/07/1923185.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/12/07/1923185.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201905/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201906/1129132/1/item.htmlcomments/1917360.aspx0comments/commentRss/1917360.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1917360HibernateTemplate回调<img src ="aggbug/1917360.aspx" width = "1" height = "1" />Wed, 05 Dec 2007 10:33:00 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+0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/11/19/1891772.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/11/19/1891772.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/11/19/1891772.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201907/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201908/1129132/1/item.htmlcomments/1826790.aspx1comments/commentRss/1826790.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1826790EasyMock的应用<img src ="aggbug/1826790.aspx" width = "1" height = "1" />Tue, 16 Oct 2007 16:59:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/10/16/1826790.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/10/16/1826790.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/10/16/1826790.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201908/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201909/1129132/1/item.htmlcomments/1825305.aspx2comments/commentRss/1825305.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1825305EJB工作原理<img src ="aggbug/1825305.aspx" width = "1" height = "1" />Mon, 15 Oct 2007 19:12:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/10/15/1825305.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/10/15/1825305.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/10/15/1825305.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201909/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201910/1129132/1/item.htmlcomments/1703241.aspx0comments/commentRss/1703241.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1703241Java平台的AJAX工具--GWT<img src ="aggbug/1703241.aspx" width = "1" height = "1" />Tue, 24 Jul 2007 00:58:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703241.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703241.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703241.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201910/1129132http://item.feedsky.com/~csdn.net/ladofwind/~1129138/89201911/1129132/1/item.htmlcomments/1703211.aspx0comments/commentRss/1703211.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=1703211关于synchronized(this)<img src ="aggbug/1703211.aspx" width = "1" height = "1" />Tue, 24 Jul 2007 00:46:00 +0800ladofwindhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703211.aspx#Feedbackhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703211.aspxladofwindhttp://blog.csdn.net/ladofwind/archive/2007/07/23/1703211.aspxhttp://blog.csdn.net/ladofwind/rss.aspxcsdn.net/ladofwind/~1129138/89201911/1129132