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Containment of Conjunctive Queries over Conceptual Schemata.
Andrea Calì
Published in:
DASFAA (2006)
Keyphrases
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containment of conjunctive queries
functional dependencies
inclusion dependencies
databases
query containment
null values
conjunctive queries
query answering
integrity constraints
entity relationship
database
knowledge base
relational databases
knowledge representation
conceptual model
decision procedures