How do you test if something is older than 3 months?

Question

I have been having some trouble to select the rows of my table which has a date of 3 months prior of today. I tried using DATE(NOW() - INTERVAL 3 MONTH) in my where

Answer 1

try out DATEDIFF:

SELECT 
    case 
        when DATEDIFF(month, '2005-12-31' , '2006-04-01 ') > 3
        then 'yes'

        else 'no'

    end

Hope that helps,

John