having condition on result of a subquery in mysql

Posted by naiquevin on Stack Overflow See other posts from Stack Overflow or by naiquevin
Published on 2010-05-13T07:06:16Z Indexed on 2010/05/13 7:14 UTC
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mysql

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subquery

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ifnull

hi

i am trying to run a query like this

SELECT a, b , c, (SELECT INNULL(x,y)) as mycol WHERE mycol < 400 ;

BUt it gives the error

#1054 - Unknown column 'mycol' in 'where clause'

What would be the right way to do this?

Thanks.

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