Apparatus and method for database synchronization in a...

Details Apparatus and method for database synchronization in a... Apparatus and method for database synchronization in a...

2005-09-06

2005-09-06

Amsbury, Wayne (Department: 2161)

Data processing: database and file management or data structures

Database design

Data structure types

C709S230000, C370S230000

Reexamination Certificate

active

06941327

ABSTRACT:
An improved duplex system is disclosed having a primary system with a primary database and a redundant system with redundant database. The improvement includes a Change List Table (CLT) that records key information regarding each transaction performed on the primary database, which must also be performed on the redundant database to maintain synchronization between the primary and redundant databases. The key information for an ithtransaction recorded in the CLT is removed from the CLT when the ithtransaction is successfully performed on the redundant database.

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