Data processing: database and file management or data structures – File or database maintenance – Synchronization
Reexamination Certificate
2011-03-08
2011-03-08
Morrison, Jay A (Department: 2168)
Data processing: database and file management or data structures
File or database maintenance
Synchronization
C707S690000, C715S203000
Reexamination Certificate
active
07904418
ABSTRACT:
An edit list including a collection of change descriptions and definitions for a primary data structure is used for on-demand, incremental updating of associated auxiliary data structures. Edits performed on the primary data structure are recorded in the edit list with a version stamp, along with definitions of the changes and any other pertinent data. Each auxiliary data structure maintains its own version stamp that identifies when the auxiliary data structure was last synchronized with the primary data structure. When an auxiliary data structure needs to be updated, the edit list is retrieved and change descriptions scanned to find one with the matching version stamp. All change descriptions logged since that one are incorporated into the auxiliary data structure. The specific contents of each change description enable the auxiliary data structure to be incrementally updated as each change description is processed individually.
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Agrawal Siddharth
Parker Robert C.
Zhang Dachuan
Merchant & Gould
Microsoft Corporation
Morrison Jay A
Tran Bao G
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