 added in its sorted location. If
                        the key already exists in the database and no duplicate
                        sort function has been specified, the inserted data item
                        is added as the first of the data items for that key.
                    </span>
        </p>
          </li>
          <li>
            <p>
            
            <code class="literal">DB_KEYLAST</code>
        </p>
            <p>
            Behaves exactly as if 
                <code 