Oracle Corporation
Age-based policies for determining database cache hits

Abstract:

Systems and methods are provided for high-performance data processing. A policy is received that indicates a cutoff time. A request is processed to return the data item from the cache if the cutoff time is satisfied for the data item or return the data item from the database or not at all if the cutoff time is not satisfied for the data item. If the data item retrieved from the database, metadata associated with the data item is stored to indicate when the data item was last marked as in sync with the database.