锘??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>&#22269;&#20135;&#19968;&#32423;&#29255;&#22312;&#32447;&#44;&#20122;&#27954;&#20108;&#21306;&#22312;&#32447;&#35270;&#39057;&#44;&#22269;&#20135;&#31934;&#21697;&#27431;&#32654;&#20037;&#20037;&#20037;&#20037;&#19968;&#21306;&#20108;&#21306;&#13;</title><link>http://www.aygfsteel.com/javaora/category/22944.html</link><description /><language>zh-cn</language><lastBuildDate>Thu, 31 May 2007 19:08:58 GMT</lastBuildDate><pubDate>Thu, 31 May 2007 19:08:58 GMT</pubDate><ttl>60</ttl><item><title>ETL</title><link>http://www.aygfsteel.com/javaora/archive/2007/05/31/121215.html</link><dc:creator>java涓栫晫鐣呰皥</dc:creator><author>java涓栫晫鐣呰皥</author><pubDate>Thu, 31 May 2007 10:20:00 GMT</pubDate><guid>http://www.aygfsteel.com/javaora/archive/2007/05/31/121215.html</guid><wfw:comment>http://www.aygfsteel.com/javaora/comments/121215.html</wfw:comment><comments>http://www.aygfsteel.com/javaora/archive/2007/05/31/121215.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/javaora/comments/commentRss/121215.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/javaora/services/trackbacks/121215.html</trackback:ping><description><![CDATA[<p>ETL(Extract-Transform-Load鐨勭緝鍐欙紝鍗蟲暟鎹娊鍙栥�佽漿鎹€�佽杞界殑榪囩▼)浣滀負BI/DW鐨勬牳蹇冨拰鐏甸瓊錛岃兘澶熸寜鐓х粺涓�鐨勮鍒欓泦鎴愬茍鎻愰珮鏁版嵁鐨勪環鍊鹼紝鏄礋璐ｅ畬鎴愭暟鎹粠鏁版嵁婧愬悜鐩爣鏁版嵁浠撳簱杞寲鐨勮繃紼嬶紝鏄疄鏂芥暟鎹粨搴撶殑閲嶈姝ラ銆?/p>
<p>ETL鏄暟鎹娊鍙?Extract)銆佽漿鎹?Transform)銆佹竻媧?Cleansing)銆佽杞?Load)鐨勮繃紼嬨�傛槸鏋勫緩鏁版嵁浠撳簱鐨勯噸瑕佷竴鐜紝鐢ㄦ埛浠庢暟鎹簮鎶藉彇鎵�闇�鐨勬暟鎹紝緇忚繃鏁版嵁娓呮礂錛屾渶緇堟寜鐓ч鍏堝畾涔夊ソ鐨勬暟鎹粨搴撴ā鍨嬶紝灝嗘暟鎹姞杞藉埌鏁版嵁浠撳簱涓幓銆?/p>
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