         accessing the database environment.
            </p>
                <p>
                The <code class="literal">DB_LOG_IN_MEMORY</code> flag may be used to configure Berkeley DB only
                 before the <a class="xref" href="envopen.html" title="DbEnv::open()">DbEnv::open()</a> 
                 method is called.
            </p>
              </li>
              <li>
                <p>
                  <code class="literal">DB_LOG_ZERO</code>
            </p>
                <p>
     