Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2004-12-08
2010-02-23
Cottingham, John R. (Department: 2167)
Data processing: database and file management or data structures
Database design
Data structure types
Reexamination Certificate
active
07668833
ABSTRACT:
The present invention provides a method, apparatus, computer program product, and service which enables a transaction manager in a first system to co-ordinate database updates made in a second system database without requiring communication with the second system during transaction completion processing (commit or rollback) or any requirement for transaction logging or involvement in transaction recovery in the second system. This is achieved by carrying out the database updates in the second system in an XA transaction branch that is started are co-ordinated in the first system. Further this is done transparently to the application in the second server which makes the updates and enables the application in the first and second server to share locks such that both can access the same database.
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X/Open Company, “Distributed Transaction Processing: The XA Specification”, Dec. 1991, X/Open Company Ltd., 94 Pages.
Buchheit Brian K.
Cottingham John R.
International Business Machines - Corporation
Patents On Demand PA
Richardson James E
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