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	<title>SQL Server Planet &#187; SQL Optimization</title>
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		<title>Auto Update Statistics &amp; Auto Create Statistics</title>
		<link>http://sqlserverplanet.com/query-optimizer/auto-update-statistics-auto-create-statistics</link>
		<comments>http://sqlserverplanet.com/query-optimizer/auto-update-statistics-auto-create-statistics#comments</comments>
		<pubDate>Mon, 19 Sep 2011 21:18:29 +0000</pubDate>
		<dc:creator>Derek Dieter</dc:creator>
				<category><![CDATA[DBA]]></category>
		<category><![CDATA[Query Optimizer]]></category>
		<category><![CDATA[SQL Optimization]]></category>
		<category><![CDATA[statistics]]></category>

		<guid isPermaLink="false">http://sqlserverplanet.com/?p=2208</guid>
		<description><![CDATA[The ability to create and update statistics is a crucial liberty for the query optimizer. The optimizer needs to know how it is going to query underlying tables, and when the statistics do not match the data, it is very probable that it will choose a non-efficient method for querying. I&#8217;ve seen and heard a [...]]]></description>
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		<title>Execution Plans</title>
		<link>http://sqlserverplanet.com/sql-optimization/execution-plans</link>
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		<pubDate>Mon, 12 Sep 2011 01:07:05 +0000</pubDate>
		<dc:creator>Derek Dieter</dc:creator>
				<category><![CDATA[SQL Optimization]]></category>
		<category><![CDATA[Troubleshooting]]></category>

		<guid isPermaLink="false">http://sqlserverplanet.com/?p=2180</guid>
		<description><![CDATA[The execution plans SQL Server creates and uses is a huge topic with many intricacies. Now I have never spoken to anyone on the SQL Server Development team, however I would imagine that there are some extremely sharp people in the query optimization team. In a nutshell, this is where the magic happens in SQL [...]]]></description>
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		<title>Understanding Batch Requests / sec</title>
		<link>http://sqlserverplanet.com/sql-optimization/understanding-batch-requests-sec</link>
		<comments>http://sqlserverplanet.com/sql-optimization/understanding-batch-requests-sec#comments</comments>
		<pubDate>Fri, 09 Sep 2011 15:50:15 +0000</pubDate>
		<dc:creator>Derek Dieter</dc:creator>
				<category><![CDATA[DBA]]></category>
		<category><![CDATA[SQL Optimization]]></category>

		<guid isPermaLink="false">http://sqlserverplanet.com/?p=2161</guid>
		<description><![CDATA[SQL Server&#8217;s Batch Requests represents the number of SQL Statements that are being executed per second. In my opinion this is the one metric that gives the best baseline on how your server is performing. It cannot be looked at by itself however. It is necessary to correlate with other metrics (especially CPU usage) in [...]]]></description>
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		<title>Understanding SQL Server Deadlocks</title>
		<link>http://sqlserverplanet.com/sql-optimization/understanding-sql-server-deadlocks</link>
		<comments>http://sqlserverplanet.com/sql-optimization/understanding-sql-server-deadlocks#comments</comments>
		<pubDate>Tue, 30 Aug 2011 20:59:15 +0000</pubDate>
		<dc:creator>Derek Dieter</dc:creator>
				<category><![CDATA[Concurrency]]></category>
		<category><![CDATA[SQL Optimization]]></category>
		<category><![CDATA[Troubleshooting]]></category>

		<guid isPermaLink="false">http://sqlserverplanet.com/?p=2131</guid>
		<description><![CDATA[In order to fix deadlocks, it&#8217;s critical to understand why they occur. I&#8217;ve gotten some push back sometimes from readers when I write articles that do not give cookie cutter solutions, but the &#8220;teach a man to fish&#8221; adage couldn&#8217;t be more true for deadlocks. All of it revolves around locking, which is a central [...]]]></description>
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		<title>Comparing Query Performance</title>
		<link>http://sqlserverplanet.com/sql-optimization/comparing-query-performance</link>
		<comments>http://sqlserverplanet.com/sql-optimization/comparing-query-performance#comments</comments>
		<pubDate>Tue, 16 Aug 2011 22:16:51 +0000</pubDate>
		<dc:creator>Derek Dieter</dc:creator>
				<category><![CDATA[SQL Optimization]]></category>

		<guid isPermaLink="false">http://sqlserverplanet.com/?p=2124</guid>
		<description><![CDATA[If you write TSQL then comparing the performance of two queries will probably be something you do on a daily basis. The difficult part of comparing queries is getting an accurate baseline. Why is this you ask? Because SQL Server has behind the scenes functionality that optimizes queries for multiple executions. This allows minimal resources [...]]]></description>
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