Event specification in an active object-oriented database
Narain H. Gehani, H. V. Jagadish, Oded Shmueli · 1992
The concept of a trigger is central to any active database. Upon the occurrence of a trigger event, the trigger is “fired”, i.e, the trigger action is executed. We describe a model and a language for specifying basic and composite trigger events in the context of an object-oriented database. The specified events can be detected efficiently using finite automata.