Computer Science and Engineering, Department of

 

Date of this Version

9-10-1995

Citation

P. Z. Revesz, Safe stratified Datalog with integer order programs, Proc. 1st International Conference on Principles and Practice of Constraint Programming, Springer LNCS 976, pp.154--169, Cassis, France, September 1995.

Comments

Copyright 1995 Peter Z. Revesz

Abstract

Guaranteeing termination of programs on all valid inputs is important for database applications. Termination cannot be guaranteed in Stratified Datalog with integer (gap)-order programs on generalized databases because they express any Turing-computable function. This paper introduces a restriction of those programs that can express only computable queries. The restricted language has a high expressive power and a non-elementary data complexity.

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