Next-Generation Real-Time Database Management and Databases

Abstract

The conventional database execution model views transactions as an atomic sequence of reads and writes executed on a monolithic database. Transactions in the conventional model act as units of execution and recovery. To provide these features database items written by a transaction remain inaccessible to other transactions until commit. This model of transaction’s execution has well served conventional database processing applications where safety was of the utmost importance, and performance secondary. Unfortunately this model is not applicable to engineering, real-time, and control oriented applications. These applications require database services which allow more concurrency with shorter contention durations, support long transactions, and user controlled consistency and recovery.