title: What is the best way to convert an int or null to boolean value in an SQL query?
body: <p>What is the best way to convert an int or null to boolean value in an SQL query, such that:</p>
  
  <ul>
  <li>Any non-null value is <strong>TRUE</strong> in the results</li>
  <li>Any null value is <strong>FALSE</strong> in the results</li>
  </ul>