Should I use "User Defined Functions" in SQL server, or C#?

Posted by sanity on Stack Overflow See other posts from Stack Overflow or by sanity
Published on 2010-04-28T22:47:37Z Indexed on 2010/04/28 22:57 UTC
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sql-server

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c#

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.NET

I have a fairly complicated mathematical function that I've been advised should be implemented as a User Defined Function in SQL Server so that it can be used efficiently from within a SQL query.

The problem is that it must be very efficient as it may be executed thousands of times per second, and I subsequently heard that UDFs are very inefficient.

Someone suggested that I could implement the function in C# instead, and that this would be much more efficient.

What should I do?

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