Title
Substitution-based compilation of extended rules in deductive databases
Abstract
Query compilation in a deductive database refers to the process of continually replacing defined literals in rule bodies by their definitions until rules with references only to stored relations are obtained. The compiled forms generate the same tuples for the head literal in a database as do the original sets of rules. Previously, the rules were assumed to be function free. However, the use of universal quantifiers (corresponding to the division operator in a database) adds a new degree of flexibility in defining views. We propose a new inference rule, the substitution rule, to replace resolution in the compilation process. The substitution rule handles the embedded universal quantifiers correctly so that the compiled forms again derive all proper instances of the head literals.
Year
DOI
Venue
1990
10.1007/3-540-52885-7_79
CADE
Keywords
Field
DocType
deductive databases,extended rule,substitution-based compilation,extended rules,inference rule
Deductive database,Tuple,Computer science,Operator (computer programming),Rule of inference,Integration by substitution,Database
Conference
Volume
ISBN
Citations 
449
0-387-52885-7
3
PageRank 
References 
Authors
7.08
7
2
Name
Order
Citations
PageRank
Sang Ho Lee1182102.61
Lawrence J. Henschen2478280.94