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	<title>Ala'a Ibrahim &#187; MySQL</title>
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	<link>http://blog.alaa-ibrahim.com</link>
	<description>THE IDEAS OF SOMEONE YOU WANT TO HEAR FROM</description>
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		<title>MySQL: Dynamic Select Queries</title>
		<link>http://blog.alaa-ibrahim.com/mysql-dynamic-select-quires/</link>
		<comments>http://blog.alaa-ibrahim.com/mysql-dynamic-select-quires/#comments</comments>
		<pubDate>Sun, 03 Jun 2007 09:36:39 +0000</pubDate>
		<dc:creator>Ala'a Ibrahim</dc:creator>
				<category><![CDATA[MySQL]]></category>

		<guid isPermaLink="false">http://guru.alaa-ibrahim.com/2007/06/03/mysql-dynamic-select-quires/</guid>
		<description><![CDATA[As we start to transfer our code to stored procedures, now we would have to start putting more logic in MySQL than before. In the past we would create an sql statement in our hosting language, and pass it by to mysql, put as we see the more improvement of performance and security in writing [...]]]></description>
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		<slash:comments>4</slash:comments>
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		<item>
		<title>NULL Is Not A Value</title>
		<link>http://blog.alaa-ibrahim.com/null-is-not-a-value/</link>
		<comments>http://blog.alaa-ibrahim.com/null-is-not-a-value/#comments</comments>
		<pubDate>Sun, 10 Sep 2006 18:05:56 +0000</pubDate>
		<dc:creator>Ala'a Ibrahim</dc:creator>
				<category><![CDATA[MySQL]]></category>

		<guid isPermaLink="false">http://alaa-ibrahim.com/guru/?p=15</guid>
		<description><![CDATA[Before a few months, I was working on some mysterious issue regarding some SQL statements, it was something like this.
SELECT count(*) from some_table WHERE (condition_a);
the result was:

+----------+
&#124; count(*) &#124;
+----------+
&#124;&#160;&#160; 11223 &#160;&#124;
+----------+

alright Now:
SELECT count(*) from some_table WHERE (condition_a) AND (condition_b);

+----------+
&#124; count(*) &#124;
+----------+
&#124; &#160;&#160;&#160; 0 &#160;&#160;&#160;&#124;
+----------+
aha Ok then:
SELECT count(*) from some_table WHERE condition_a AND NOT (condition_b);
The result [...]]]></description>
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