Temporal databases: From theory to applications.

Abstract Problems concerning the date and time representation in databases are well studied in scientific literature. Temporal databases are required in many applications including the conventional applications of DBMSs such as financial systems. However, commercial systems and standards for the query language do not support temporal data features. A simple and efficient approach for implementing temporal capabilities over conventional commercial DBMSs is proposed and various aspects of its practical applications are described. [ABSTRACT FROM AUTHOR]