Apparatus, system, and method for maintaining metadata for offline repositories in online databases for efficient access

摘要

An apparatus, system, and method are disclosed for maintaining metadata for offline repositories in online databases for efficient access. In one embodiment the apparatus includes a metadata module configured to maintain metadata pertaining to one or more data record copies of a data record. At least one of the one or more data record copies is stored in an offline storage medium. The apparatus further comprises a query processor module configured to retrieve metadata pertaining to the one or more data record copies in accordance with the metadata stored in the metadata module.