Filtering A MySQL Result Set Based On The Return Value Of A Function

Posted by Joshua on Stack Overflow See other posts from Stack Overflow or by Joshua
Published on 2010-03-22T12:44:41Z Indexed on 2010/03/22 12:51 UTC
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mysql

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stored-procedures

I'm a SQL noob, and I need a little bit of help understanding the big picture of if it is possible, and if so how to go about filtering a result set based on the return value of a function which is passed one of the fields of the record.

Let's say I have a table called "Numbers" with just one field: "Value".

How could I correctly specify the following "pseudo-sql"?:

SELECT Value FROM numbers WHERE IsPrime(Value)=true

Can I accomplish such a thing, and if so, where/how do I put/store "IsPrime"?

I'm using MySQL.

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