o the <code class="classname">DB_TXN</code> handle. Once the 
            <a class="xref" href="txnabort.html" title="DB_TXN-&gt;abort()">DB_TXN-&gt;abort()</a> or 
            <a class="xref" href="txncommit.html" title="DB_TXN-&gt;commit()">DB_TXN-&gt;commit()</a> methods are called, the handle
            may not be accessed again, regardless of the method's return. In addition, parent
            transactions may not issue any Berkeley DB operations while they have active child
            transactions 