Why a single parallelization strategy is not enough in knowledge bases
PODS '89 Proceedings of the eighth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A logic for object-oriented logic programming
PODS '89 Proceedings of the eighth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Integrating object-oriented data modelling with a rule-based programming paradigm
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
GraphLog: a visual formalism for real life recursion
PODS '90 Proceedings of the ninth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
What You Always Wanted to Know About Datalog (And Never Dared to Ask)
IEEE Transactions on Knowledge and Data Engineering
An Algebraic Theory of Object-Oriented Systems
IEEE Transactions on Knowledge and Data Engineering
Querying RDF data from a graph database perspective
ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
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We consider the main features of updates in databases. Recent results on updates are briefly described and used to raise various questions. It is argued that well-accepted query properties like safety and determinism should not be strictly enforced ...