T-SQL User-Defined Functions: the good, the bad, and the ugly (part 3)

Posted by Hugo Kornelis on SQL Blog See other posts from SQL Blog or by Hugo Kornelis
Published on Fri, 29 Jun 2012 18:44:00 GMT Indexed on 2012/07/07 9:23 UTC
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Performance

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t-sql

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udf

I showed why T-SQL scalar user-defined functions are bad for performance in two previous posts. In this post, I will show that CLR scalar user-defined functions are bad as well (though not always quite as bad as T-SQL scalar user-defined functions). I will admit that I had not really planned to cover CLR in this series. But shortly after publishing the first part , I received an email from Adam Machanic , which basically said that I should make clear that the information in that post does not apply...(read more)

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