        deleting records, the backing source file must be read in its entirety
                 before more than a single process accesses the database, and only that
                 process should specify the backing source argument as part of the
                 <span class="bold"><strong>berkdb open</strong></span> call.  See the <span class="bold"><strong>-snapshot</strong></span> argument for more
                 information.</strong></span>
            </p>
            <p>
                 <span cl