Logical Foundations and Complexity of 4QL, a Query Language with Unrestricted Negation

Jan Maluszynski Andrzej Szalas

Published in: CoRR (2010)

Keyphrases

query language
logical foundations
data model
expressive power
query evaluation
object oriented
complex objects
active databases
logic programs
conjunctive queries
logic programming
relational algebra
xml data
database
web services