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	<title>blog.cnizz.com &#187; SQL</title>
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	<description>my little notepad</description>
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		<title>Random Musings on MySQL Order By Optimizations</title>
		<link>http://blog.cnizz.com/2010/09/09/random-musings-on-mysql-order-by-optimizations/</link>
		<comments>http://blog.cnizz.com/2010/09/09/random-musings-on-mysql-order-by-optimizations/#comments</comments>
		<pubDate>Thu, 09 Sep 2010 17:27:44 +0000</pubDate>
		<dc:creator>chris</dc:creator>
				<category><![CDATA[SQL]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[orderby]]></category>

		<guid isPermaLink="false">http://blog.cnizz.com/?p=517</guid>
		<description><![CDATA[Was attempting to optimize a query for some additional functionality we are going to be releasing soon and sadly to say I failed.  I was hoping to get the query execution time down to 0.01 seconds, but the best I could muster was a measly 0.03 seconds.
The goal of the query is to pull [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>MySQL INNER JOIN on Multiple Parameters and Condtions</title>
		<link>http://blog.cnizz.com/2010/08/19/mysql-inner-join-on-multiple-parameters-and-condtions/</link>
		<comments>http://blog.cnizz.com/2010/08/19/mysql-inner-join-on-multiple-parameters-and-condtions/#comments</comments>
		<pubDate>Thu, 19 Aug 2010 18:57:50 +0000</pubDate>
		<dc:creator>chris</dc:creator>
				<category><![CDATA[SQL]]></category>
		<category><![CDATA[join]]></category>
		<category><![CDATA[mysql]]></category>

		<guid isPermaLink="false">http://blog.cnizz.com/?p=488</guid>
		<description><![CDATA[Wow.  This blog has gotten a bit lopsided as of late on the MySQL side of stuff.  A symptom of all the MySQL wizardry I&#8217;ve been doing and learning at my new job.  I found out today that you can add multiple parameters/conditions to an INNER JOIN statement and I feel kind [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>What is PDO Error HY093</title>
		<link>http://blog.cnizz.com/2010/08/11/what-is-pdo-error-hy093/</link>
		<comments>http://blog.cnizz.com/2010/08/11/what-is-pdo-error-hy093/#comments</comments>
		<pubDate>Wed, 11 Aug 2010 22:02:23 +0000</pubDate>
		<dc:creator>chris</dc:creator>
				<category><![CDATA[SQL]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[pdo]]></category>
		<category><![CDATA[prepared statements]]></category>

		<guid isPermaLink="false">http://blog.cnizz.com/?p=469</guid>
		<description><![CDATA[I&#8217;ve been working with PDO at my new job and encountered this HY093 error.  Infact that was the only information I received back from my PDO object.  Usually there is a lot more information.  My guess is that generally PDO is passing back the MySQL error directly from the MySQL server.  [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Use MySQL HAVING to Get Past Error 1111 Invalid Use of Group Function</title>
		<link>http://blog.cnizz.com/2010/06/22/use-mysql-having-to-get-past-error-1111-invalid-use-of-group-function/</link>
		<comments>http://blog.cnizz.com/2010/06/22/use-mysql-having-to-get-past-error-1111-invalid-use-of-group-function/#comments</comments>
		<pubDate>Wed, 23 Jun 2010 03:21:20 +0000</pubDate>
		<dc:creator>chris</dc:creator>
				<category><![CDATA[SQL]]></category>
		<category><![CDATA[group by]]></category>
		<category><![CDATA[having]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[mysql error 1111]]></category>

		<guid isPermaLink="false">http://blog.cnizz.com/?p=449</guid>
		<description><![CDATA[I was working on some new reporting features for a client this evening when I encountered MySQL Error 1111 Invalid Use of Group Function.  I was a bit befuddled by this as I was simply using a SUM total in my WHERE clause.  Of course after a bit of googling I found that [...]]]></description>
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		<title>MySQL InnoDb inserts are slow, really slow!</title>
		<link>http://blog.cnizz.com/2010/06/12/mysql-innodb-inserts-are-slow-really-slow/</link>
		<comments>http://blog.cnizz.com/2010/06/12/mysql-innodb-inserts-are-slow-really-slow/#comments</comments>
		<pubDate>Sat, 12 Jun 2010 21:08:37 +0000</pubDate>
		<dc:creator>chris</dc:creator>
				<category><![CDATA[SQL]]></category>
		<category><![CDATA[innodb]]></category>
		<category><![CDATA[myisam]]></category>
		<category><![CDATA[mysql]]></category>

		<guid isPermaLink="false">http://blog.cnizz.com/?p=445</guid>
		<description><![CDATA[So I was doing some MySQL database optimization tests this morning when I got my database engines mixed up.  Thats when I stumbled on something horrible&#8230;.InnoDb is really slow when it comes to inserts!  Like really slow.  I performed 10,000 inserts on MyIsam and it executed in about 1/10th of a second. [...]]]></description>
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		<slash:comments>6</slash:comments>
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