Patent ID: 8959052
Filing Date: 2015-02-17
Classification: G06F

Abstract:
1. A database update control apparatus comprising: a memory; and a processor coupled to the memory, wherein the processor executes a process comprising: updating, when update information with respect to one of multiple replicated databases that are generated by replicating respective contents of multiple databases is received, the replicated database on the basis of the update information, each of the multiple replicated databases storing a replica of a corresponding one of the multiple databases, and the replica in each of the multiple replicated databases is different from each other; retaining, in an associated manner for each replicated database and when the replicated database is updated, pre-update data and an identifier which is added to the update information; extracting, for each replicated database from among the identifiers retained at the retaining, a first identifier indicating the latest update information and specifying, from the extracted first identifiers for the multiple replicated databases, a second identifier indicating the oldest update information; and reflecting pre-update data associated with an identifier that is newer than the second identifier specified at the specifying in a corresponding replicated database out of the multiple replicated databases.