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> <channel><title>Tinsology &#187; data</title> <atom:link href="http://tinsology.net/tag/data/feed/" rel="self" type="application/rss+xml" /><link>http://tinsology.net</link> <description>Searching for the Right Questions</description> <lastBuildDate>Wed, 25 Jan 2012 16:57:44 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.3.1</generator> <item><title>Metadata</title><link>http://tinsology.net/2009/07/metadata/</link> <comments>http://tinsology.net/2009/07/metadata/#comments</comments> <pubDate>Thu, 02 Jul 2009 05:04:26 +0000</pubDate> <dc:creator>Tinsley</dc:creator> <category><![CDATA[Databases]]></category> <category><![CDATA[data]]></category> <category><![CDATA[meta]]></category> <category><![CDATA[metadata]]></category> <guid
isPermaLink="false">http://tinsology.net/?p=794</guid> <description><![CDATA[Throughout the life of a database there may come times when it needs to be updated to incorporate changes or new features. This may involve adding new attributes to existing entities; adding new columns to tables. The problem with this is that in a populated database, modifying the database schema can be very expensive with regard to performance. This is not something you want to do frequently on a live <a
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