Antonelli, Terry, Stout, & Kraus, LLP
Distributed database management system including logical database constituted by a group of physical databases
A distributed database management system includes a communication network, at least a terminal device including an application program execution unit connected to the communication network, a plurality of information processors connected to the communication network, a plurality of physical databases installed in at least one of the information processors, at least a logical database grouping a plurality of the, physical databases, the logical database being defined by logical database information stored in at least one of the terminal device and the plurality of information processors, at least a table stored in at least one of the physical databases, and a table location searching unit installed in at least one of the terminal device and the plurality of information processors, for searching a table stored in at least one of the physical databases based on the logical database information, the table being requested to access on a logical database, from the application program execution unit.
Hitachi, Ltd.
G G
G06F G06F
inventional inventional
Keiichi Hisashi Eisaku Hiromichi Satoshi
Nakane Hashimoto Nishiyama Ito Kikuchi