On the composition and decomposition of datalog program mappings

Authors:
G. Dong
Affiliations:
Univ. of Southern California, Los Angeles, CA
Venue:
Lecture notes in computer science on ICDT '88
Year:
1988

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Semantics and expressiveness issues in active databases (extended abstract)

PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems

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Abstract

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 ...