Patent ID: 6578041
Filing Date: 2003-06-10
Classification: G06F,Y10S

Abstract:
In a database computer system having a non-volatile memory including a stable log and a stable database comprising a plurality of objects, a cache manager for flushing objects to the stable database, and a backup database, a computer-implemented method comprising the following steps:(a) copying objects from a first region of the stable database to the backup database while a first update activity continues, in accordance with at least a first logical log operation, the first region of the stable database bounded by a first boundary value and a second boundary value; (b) adjusting the first boundary value and adjusting the second boundary value to define a further region of the stable database; and (c) copying objects from the further region of the stable database to the backup database while a second update activity continues, in accordance with at least a second logical log operation.