title: analog to MySQL's DATE_SUB / INTERVAL
body: <p>In MySQL the following will tell you what the date was a month ago:</p>
  
  <pre><code>SELECT DATE_SUB(NOW(), INTERVAL 1 MONTH);
  </code></pre>
  
  <p>The <a href="http://sqlfiddle.com/#!2/d41d8/9544" rel="noreferrer">SQL fiddle</a>.</p>
  
  <p>How can this be done in SQL Server?</p>