title: checking the existence while printing value in a table
body: <p>I am displaying results in a table after looping through a query. For <code>TestNumber</code>, there are some results in my query where the number is not present and 
  hence I want to display <code>N/A</code> instead of just blank in the table. So, I am checking the existence
  using <code>IsDefined</code>, but for some reason it keeps on printing <code>N/A</code> everytime. </p>
  
  <pre><code>&lt;cfloop query="GetMyList1"&gt;
      &lt;tr&gt;
          &lt;td align="center"&gt;#TestName#&lt;/td&gt;
          &lt;cfif IsDefined(TestNumber) &gt;
              &lt;td align="center"&gt;#TestNumber#&lt;/td&gt;
          &lt;cfelse&gt;
              &lt;td align="center"&gt;N/A&lt;/td&gt;
          &lt;/cfif&gt;
          &lt;td align="center"&gt;#Date#&lt;/td&gt;
      &lt;/tr&gt;
  &lt;/cfloop&gt;
  </code></pre>