and slow.
But, in most cases, an application is performing only very simple queries using exact match or key range.
This is done in DyBASE by <code>Index</code> class which make it possible to associate persistent object with
key of any supported scalar or string type.<P>

Indices are created in DyBASE using <code>Storage.createXXXIndex</code> method, 
where <code>XXX</code> specifies type of the key. You can place in the index only keys with the same type as specified 
at index creation time (so it is not 