title: MySQL: DATE_ADD
body: <p>Is there a difference between:</p>
  
  <pre><code>SELECT DATE_ADD('2005-01-01', INTERVAL 3 MONTH);
  </code></pre>
  
  <p>and</p>
  
  <pre><code>SELECT '2005-01-01' + INTERVAL 3 MONTH;
  </code></pre>