The incremental condition evaluation method in active temporal database system

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a gradual condition evaluation method in an active time support database system.;2. The technical problem to be solved by the invention;The present invention uses a progressive condition evaluation method to improve the performance when evaluating the conditions of time-supported active rules in an active time-supported database system by reducing the amount of data to be processed by the rules according to the time domain to improve the performance Its purpose is to provide a condition assessment method.;3. Summary of Solution to Invention;The present invention includes a first step of checking whether an event occurs or an event is detected while executing an application program; A second step of performing a corresponding operation if an event does not occur or is detected; And a third step of performing a gradual conditional evaluation by extracting previous evaluation contents when an event occurs or an event is detected.;4. Important uses of the invention;The present invention is used in an active time support database system.