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	<title>Comments on: Question 39: Which of the alternatives below actually work?</title>
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		<title>By: urs</title>
		<link>http://mysql-qotd.casperia.net/archives/295/comment-page-1#comment-45</link>
		<dc:creator>urs</dc:creator>
		<pubDate>Sun, 07 Mar 2010 15:49:11 +0000</pubDate>
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Answers:
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a c
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c works, but the most reliable option is a. User variables are powerful but can be tricky.
Please check http://dev.mysql.com/doc/refman/5.0/en/user-variables.html
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&nbsp;<br />
Answers:<br />
&nbsp;<br />
a c<br />
&nbsp;<br />
c works, but the most reliable option is a. User variables are powerful but can be tricky.<br />
Please check <a href="http://dev.mysql.com/doc/refman/5.0/en/user-variables.html" rel="nofollow">http://dev.mysql.com/doc/refman/5.0/en/user-variables.html</a><br />
&nbsp;<br />
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