of replicated dataUS6035307Mar 30, 1998Mar 7, 2000Bmc SoftwareEnterprise data movement system and method including opportunistic performance of utilities and data move operations for improved efficiencyUS6070164May 9, 1998May 30, 2000Information Systems CorporationDatabase method and apparatus using hierarchical bit vector index structureUS6070170 *Oct 1, 1997May 30, 2000International Business Mac