Fourth International Workshop on Research Issues in Data Engineering: Active Database Systems : Proceedings, February 14-15, 1994, Houston, TexasJennifer Widom, Sharma Chakravarthy Proceedings of a workshop held in Houston, Texas, in February 1994. Papers centering around active databases are divided into six sections: implementation and optimization, language design and applications, integrity constraints and derived data, rule processing I and II, and design and debugging. T |
Contents
Detecting Composite Events in Active Database Systems Using Petri Nets | 2 |
Performance of Incremental Update in Database Rule Processing | 10 |
Rule Processing II | 12 |
Copyright | |
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Common terms and phrases
abort action active database additional agent algorithm allowed application approach assume atom attribute base behavior called complex component composite events Computer condition consider consistent contains corresponding created Database Systems deductive defined definition deleted denote dependencies derived described determine developed discussed effect elements evaluation event example execution exist expressions extensions Figure formal formula function given goal has-instance IEEE implementation incremental insert instance integrity constraints internal issues knowledge language Logic Management match metarules method modifications Note object obtained occur operation optimization pattern performance portfolio possible predicate present problem Proc Production query reaction References relation represented respect result rule S-PN schema semantics specification step structure task temporal tion token transaction transition trigger tuple update variables violation