MYSQL select data that is older then 2 years
<p>So I want to purge some data from the system which is older then 2 years.</p>

<p>I have a datetime field where I store.</p>

<p>I know I can do something like </p>

<pre><code>SELECT * FROM `table` where date_field &lt; (??? what goes here)
</code></pre>

<p>My problem is i think how do I calculate the date, or maybe I am confused</p>