l 29, 2008Sun Microsystems, Inc.System and method including a merging driver for accessing multiple data sourcesUS7415021 *Dec 9, 2004Aug 19, 2008Sun Microsystems, Inc.Method and apparatus for preserving null semantics during use of a forwarding methodUS7725465Apr 18, 2007May 25, 2010Oracle International CorporationDocument date as a ranking factor for crawlingUS7941419Feb 28, 2007May 10, 2011Orac