title: Not equal <> query excludes NULL values
body: <p>I'm having a problem with some SQL queries that I cant figure out.</p>
  
  <pre><code>SELECT * FROM MasterList WHERE Requested &lt;&gt; "Yes";
  </code></pre>
  
  <p>If I run the above query on my table I get 60 records returned. However There should be close to 300.  I think the issue is, some of the records are just blank in the Requested field and others are NULL.  But I would have thought NULL would still count as not equal to "Yes" wouldnt it? If not, is there a way around that without having to go back and 'blank' all the null fields?</p>