    Also, the BDB SQL interface supports multiple readers
                <span class="emphasis"><em>and</em></span> multiple writers. This means that
                multiple transactions can acquire locks
                as long as they are not trying to modify the
                same page.  For example:
            </p>
        <p>
                <span class="bold"><strong>Session 1:</strong></span>
            </p>
        <pre class="programlisting">dbsql&gt; create table a(x int);
dbsql&gt; begin;
d