Titlebook: Active Rules in Database Systems; Norman W. Paton Book 1999 Springer-Verlag New York, Inc. 1999 DBMS.algorithms.architectures.classificati

最小

Die Konstruktionselemente des Automaten,is indicated how existing optimization techniques for passive databases can be adapted and extended for use with active rules, and in particular, how the results of rule analysis can be combined with multiple query optimization techniques to support effective optimization of rule bases.

originality

侵略主义

Einrichtung und Betrieb der Automaten,s in comparison to passive solutions, and identify performance-critical aspects of ADBMS’s. We then describe the Beast benchmark which has been proposed for measuring the performance of object-oriented ADBMS’s and present results obtained from running Beast on SAMOS. We conclude the chapter by ident

豪华

Mawkish

https://doi.org/10.1007/978-3-322-84873-4tive database system differ from those for a centralized active database system, the technical capabilities necessary for supporting active functionality must be revised and extended, and new challenges must be met. In addition, distributed active database systems and distributed rule processing off

演绎

https://doi.org/10.1007/978-3-322-84873-4ess quite different knowledge models and induce quite distinct execution models. In the last few years, there has been a strong research interest in unifying the two uses of rules by means of a language that either reconciles or, at least, encompasses the more distinctive aspects of their expected c

披肩

Entscheidungsverfahren für ,-Automatenave been developed independently by different vendors, and triggers developed for one system generally do not work with another. This chapter describes how triggers are supported in the SQL3 standard, and in particular how the triggers relate to other features of the standard.

fender

Grundlagen der Theorie formaler Sprachend with a new production-rule sublanguage. The Ariel rule system is tightly coupled with query and update processing. Ariel rules can have conditions based on a mix of selections, joins, events, and transitions. For testing rule conditions, Ariel makes use of a discrimination network composed of a sp

火花

Entscheidungsverfahren für ,-Automateny of Zurich, the main goal of which is the development of an active object-oriented database system supporting advanced active functionality. The first implementation of the SAMOS prototype (release SAMOS 1.0) was completed in 1995 and is available in the public domain (http://www. ifi.unizh.ch/DBTG

acrobat