Transaction Logic Programming

  • Bonner A
  • Kifer M
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Abstract

An extension of predicate logic, called Transaction Logic, is proposed, which accounts in a clean and declarative fashion for the phenomenon of state changes in logic programs and databases. Transaction Logic has a natural model theory and a sound and complete proof theory, but unlike many other logics, it allows users to program transactions. This is possible because, like classical logic, Transaction Logic has a "Horn" version which has a procedural as well as a declarative semantics. In addition, the semantics leads naturally to features whose amalgamation in a single logic has proved elusive in the past. These features include both hypothetical and committed updates, dynamic constraints on transaction execution, nondeterminism, and bulk updates. Finally, Transaction Logic holds promise as a logical model of hitherto non-logical phenomena, including so-called procedural knowledge in AI, active databases, and the behavior of object-oriented databases, especially methods with side ef...

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Authors

  • Anthony J. Bonner

  • Michael Kifer

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