Abstract
Active databases couple database technology with rule-based programming and offer a natural way to develop applications in which the shared properties of data are centralised instead of being scattered among application programs. Unfortunately, designing, implementing and evolving applications based on the active database paradigm is still a very difficult task, mostly due to the poor understanding of the semantic issues underlying active rules. This paper provides a categorization of the dimensions of active database semantics and provides a uniform model to describe rules with different behaviours, capable of expressing the features of most commercial system and research prototypes.
This work has been supported by ESPRIT III of the EC (project n.6333 IDEA) and by Consiglio Nazionale delle Ricerche (Progetto LOGIDATA+).
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Comai, S., Fraternali, P., Psaila, G., Tanca, L. (1996). A Uniform Model to Express the Behaviour of Rules with Different Semantics. In: Berndtsson, M., Hansson, J. (eds) Active and Real-Time Database Systems (ARTDB-95). Workshops in Computing. Springer, London. https://doi.org/10.1007/978-1-4471-3080-2_12
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DOI: https://doi.org/10.1007/978-1-4471-3080-2_12
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