            <span class="parameter">key</span>, or <span class="parameter">pkey</span>, or
            <span class="parameter">data</span> is partial <a href="T_BerkeleyDB_DatabaseEntry.htm">DatabaseEntry</a>,
            its <a href="P_BerkeleyDB_DatabaseEntry_PartialLen.htm">PartialLen</a> bytes starting
            <a href="P_BerkeleyDB_DatabaseEntry_PartialOffset.htm">PartialOffset</a> bytes from the beginning
            of the retrieved data record are returned as if they comprised the
            ent