Method for regulating access of computers to data of a central c

Details Method for regulating access of computers to data of a central c Method for regulating access of computers to data of a central c

1998-02-27

2000-05-09

Fetting, Anton W.

Data processing: database and file management or data structures

Database design

Data structure types

707 10, 707201, 707204, 709221, G06F 1730

Patent

active

060616830

ABSTRACT:
A method that regulates the access of a plurality of computers onto data of a central computer. Operations on local copies of a true subset by computers are thereby generally possible in the method. For synchronization, log files that contain the operations on the replicated data are sent to the central computer. When numerous conflicts due to the access of a plurality of computers to the same datasets on the central computer occur in the synchronization, the method can offer regulated access to the shared data and, thus, the resolution of the conflicts. This change in the operating mode for resolving conflicts given access to shared data can also ensue automatically with prescribable thresholds for acceptable and unacceptable numbers of collisions. When conflicts are to be generally avoided, the offers the service of transactions that are either completely executed or can be completely cancelled.

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S. Jablonski et al., Datenkonsistenz in verteilten Systemen, in DE-Z Informationstechnik, it 33, 1991, 4 Seiten, pp. 175-184.

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