Compiling complex database transition triggers

  • Authors:
  • D. Cohen

  • Affiliations:
  • Information Sciences Institute, University of Southern California, 4676 Admiralty Way, Marina de1 Rey, CA

  • Venue:
  • SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
  • Year:
  • 1989

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Abstract

This paper presents a language for specifying database updates, queries and rule triggers, and describes how triggers can be compiled into an efficient mechanism. The rule language allows specification of both state and transition constraints as special cases, but is more general than either. The implementation we describe compiles rules and updates independently of each other. Thus rules can be added or deleted without recompiling any update program and vice versa.