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	<title>Dave Turpin, SQL Server Practitioner &#187; NTILE</title>
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	<description>What I can forget but want to remember</description>
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		<title>Testing HASHING to Speed Up Queries on Strings Part II</title>
		<link>http://www.daveturpin.com/2010/04/testing-hashing-to-speed-up-queries-on-strings-part-ii/</link>
		<comments>http://www.daveturpin.com/2010/04/testing-hashing-to-speed-up-queries-on-strings-part-ii/#comments</comments>
		<pubDate>Sun, 04 Apr 2010 11:05:59 +0000</pubDate>
		<dc:creator>Dave</dc:creator>
				<category><![CDATA[T-SQL]]></category>
		<category><![CDATA[CHECKSUM]]></category>
		<category><![CDATA[hashing]]></category>
		<category><![CDATA[NTILE]]></category>

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		<description><![CDATA[The objective of my last post, Testing HASHING to Speed Up Queries on Strings Part I, was to demonstrate query lookup performance when querying hash columns instead of the original string value.  In my test I chose a small set of about 20,000 email addresses as the base test case. To recap the last post: [...]]]></description>
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