Data processing: database and file management or data structures – Database design – Data structure types
Patent
1997-08-01
1999-12-28
Black, Thomas G.
Data processing: database and file management or data structures
Database design
Data structure types
707 8, 707103, 707201, 707203, G06F 1730
Patent
active
060094273
ABSTRACT:
A distributed database-management system is disclosed in which multiple clients on a network share control over and responsibility for the coherency of a shared database with multiple records. The clients arbitrate between each other for exclusive editing access to each of the fields within each record. The database-management system includes lock fields associated with each field in the multiple records. Each client executes a resident coherency process which is responsive to a request to edit a field. The process grants the request if there is not a field lock on the field. When the request is granted the coherency process asserts exclusive ownership of the field by placing a lock on the field. The coherency process is also responsive to a request to exit editing the field and in response thereto de-asserts exclusive ownership of the field.
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Black Thomas G.
Hewlett -Packard Company
Mizrahi Diane D.
LandOfFree
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