title: Dynamic (Column Based) Interval
body: <p>How do I add a dynamic (column based) number of days to NOW?</p>
  
  <pre><code>SELECT NOW() + INTERVAL a.number_of_days "DAYS" AS "The Future Date" 
  FROM a;
  </code></pre>
  
  <p>Where <code>a.number_of_days</code> is an integer?</p>