 class="title"><a id="bdblockusage"></a>Lock Usage with the BDB SQL Interface</h3>
            </div>
          </div>
        </div>
        <p>
                When you use the BDB SQL interface, you can 
                begin your transaction with <code class="literal">BEGIN</code> or <code class="literal">BEGIN EXCLUSIVE</code>.
                </p>
        <p>
                Note that the <code class="literal">IMMEDIATE</code> keyword is ignored in the BDB SQL interface (<code class="literal">BEGIN IM