Fast synchronization of computer databases using coverage...

Details Fast synchronization of computer databases using coverage... Fast synchronization of computer databases using coverage...

2002-05-31

2010-11-16

Truong, Cam Y T (Department: 2169)

Data processing: database and file management or data structures

File or database maintenance

Synchronization

C707S617000, C707S618000, C707S620000

Reexamination Certificate

active

07836015

ABSTRACT:
A method and system for fast synchronization of computer databases using coverage status. First coverage information of a first database and second coverage information of a second database are accessed. Using the coverage information from the two databases, it may be determined which data elements from the second database are more recent than corresponding data elements from the first database. Data elements from the second database that are more recent than corresponding data elements of the first database may be transferred to the first database. In this novel manner, synchronization of two databases may take place without comparing corresponding data elements between the two databases in order to determine if a data element has been modified. By this exchange of coverage information, it is possible to transfer only changed records, in one direction, allowing for a consistent synchronization method that is typically faster than prior art methods.

REFERENCES:
patent: 6295541 (2001-09-01), Bodnar et al.
patent: 6401104 (2002-06-01), LaRue et al.
patent: 6449622 (2002-09-01), LaRue et al.
patent: 2002/0059299 (2002-05-01), Spaey
patent: 2002/0116405 (2002-08-01), Bodnar et al.
patent: 2003/0182327 (2003-09-01), Ramanujam et al.

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