e class="classname">DbDeadlockException</code> is thrown when multiple threads competing for a
        lock are deadlocked, when a lock request has timed out (and
        <a class="link" href="envset_flags.html#envset_flags_DB_TIME_NOTGRANTED">DB_TIME_NOTGRANTED</a>
        has not been set in the environment), or when a lock
        request would need to block and the transaction has been configured to not wait for locks.
        One of the threads' transactions is selected for termination, and a
        <