Active Rules and Active Databases: Concepts and Applications

Abstract

This chapter surveys the topic of active rules and active databases. We analyze the state of the art of active databases and active rules, their properties and applications. In particular, we describe the case of triggers following the SQL-1999 Standard Committee point of view. Then, we consider the case of dynamic constraints for which we use a temporal logic formalism. Finally, we discuss the applicability, limitations and partial solutions found when attempting to ensure the satisfaction of dynamic constraints.