title: TIMESTAMP and SYSDATE
body: <p>Is it a simple way to compare is field of TIMESTAMP type get into last <strong>n</strong> hours?
  I can do the calculation based on the day and time, but is it possible something like </p>
  
  <pre><code>timestamp &gt; SYSDATE - 1
  </code></pre>
  
  <p>(SYSDATE - 1) is yesterday, as far as understand, so that will check if timestamp is within the last 24 hours.</p>
  
  <p>Thanks in advance.</p>