G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 12/00 (2006.01) G06F 17/30 (2006.01)
Patent
CA 2176165
The chronicle data model of the present invention permits the capture, within the data model, of many computations common to transactional recording systems. An important aspect of the chronicle data model is incremental maintenance of materialized view in time independent of the size of the recorded stream. The chronicle data model differs from the relational model in that it encapsulates within itself (1) support for aggregate, or summary, queries over sequences that may not be stored in their entirety, through the use of materialized (or persistent) views; and, (2) automatic incremental maintenance of persistent views as records are inserted into the sequence. A chronicle data model can be implemented on top of a relational system. An aspect of this invention is to reduce the complexity of the application domains that need a chronicle system by encapsulating this model within the database. Within the chronicle data model of the present invention is disclosed: the type of summary queries that can be answered by using persistent views is determined, the complexity of incrementally maintaining the persistent views and development of a language ensuring low maintenance complexity independent of the sequence sizes.
Jagadish Hosagrahar Visvesvaraya
Mumick Inderpal Singh
Silberschatz Abraham
At&t Ipm Corp.
Kirby Eades Gale Baker
LandOfFree
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