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	<title>Comments on: T-SQL: IsNumeric function</title>
	<atom:link href="http://sqlblog.de/blog/2009/11/t-sql-isnumeric-function/feed/" rel="self" type="application/rss+xml" />
	<link>http://sqlblog.de/blog/2009/11/t-sql-isnumeric-function/</link>
	<description>SQLBlog.DE &#124; ..things to remember</description>
	<lastBuildDate>Mon, 21 Jun 2010 18:03:21 +0000</lastBuildDate>
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		<title>By: Ralf</title>
		<link>http://sqlblog.de/blog/2009/11/t-sql-isnumeric-function/comment-page-1/#comment-40140</link>
		<dc:creator>Ralf</dc:creator>
		<pubDate>Thu, 04 Mar 2010 12:54:03 +0000</pubDate>
		<guid isPermaLink="false">http://sqlblog.de/blog/?p=691#comment-40140</guid>
		<description>Thank you for this hint.</description>
		<content:encoded><![CDATA[<p>Thank you for this hint.</p>
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		<title>By: Holger Schmeling</title>
		<link>http://sqlblog.de/blog/2009/11/t-sql-isnumeric-function/comment-page-1/#comment-37898</link>
		<dc:creator>Holger Schmeling</dc:creator>
		<pubDate>Tue, 05 Jan 2010 11:17:53 +0000</pubDate>
		<guid isPermaLink="false">http://sqlblog.de/blog/?p=691#comment-37898</guid>
		<description>Ralf,

yes, the ISNUMERIC() function is not really usefull. But the problem is slightly more complex. Here are some examples where your solution fails:

&#039;.,0&#039; =&gt; error
&#039;0x12&#039; =&gt; is numeric, but returns NULL
&#039;$.0&#039; =&gt; error
&#039;-€,2&#039; =&gt; error

Regards,
Holger</description>
		<content:encoded><![CDATA[<p>Ralf,</p>
<p>yes, the ISNUMERIC() function is not really usefull. But the problem is slightly more complex. Here are some examples where your solution fails:</p>
<p>&#8216;.,0&#8242; =&gt; error<br />
&#8217;0&#215;12&#8242; =&gt; is numeric, but returns NULL<br />
&#8216;$.0&#8242; =&gt; error<br />
&#8216;-€,2&#8242; =&gt; error</p>
<p>Regards,<br />
Holger</p>
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