ically, if <span class="bold"><strong>spp</strong></span> is non-NULL, a
         pointer to the statistics for the database are copied into the memory
         location to which it refers.
    </p>
      <p>
         Statistical structures are stored in allocated memory.  If
         application-specific allocation routines have been declared (see
         <a class="xref" href="envset_alloc.html" title="DbEnv::set_alloc()">DbEnv::set_alloc()</a> 
         for more information), they are used to allocate th