title: proc report print null dataset
body: <p>I have a null dataset such as </p>
  
  <pre><code>data a;
  if 0;
  run;
  </code></pre>
  
  <p>Now I wish to use proc report to print this dataset. Of course, there will be nothing in the report, but I want one sentence in the report said "It is a null dataset". Any ideas?
  Thanks.</p>