Patent ID: 7664758
Filing Date: 2010-02-16
Classification: G06F

Abstract:
1. An integrated database system, comprising: a plurality of database systems connected to one another by a network, each of said plurality of database systems managing its own stored data independently of the other database systems and accessing the stored data in accordance with an access request; and an integrated database unit connected to the network, wherein: said integrated database unit includes: a directory database which stores, as to each object stored in said plurality of database systems, corresponding information including directory information and a database system in which the object concerned is stored; a directory control unit which acquires, by using said directory database, directory information corresponding to a target object of an accepted access request; a database identifying unit which identifies, by using said directory database, the database system corresponding to said target object of the accepted access request; and a database control unit which issues, on the basis of the acquired directory information, an access request to the database system having the target object of the accepted access request, wherein: the database system includes a database server unit which accesses a database in accordance with the access request issued by said integrated database unit.