Deductive databases for computing certain and consistent answers from mediated data integration systems.
Loreto BravoLeopoldo E. BertossiPublished in: J. Appl. Log. (2005)
Keyphrases
- deductive databases
- integrity constraints
- data integration systems
- consistent answers
- query answering
- functional dependencies
- conjunctive queries
- query rewriting
- data sources
- fixpoint
- logic programming
- null values
- datalog programs
- data complexity
- stable models
- data integration
- knowledge base
- schema mappings
- answering queries
- relational databases
- regular path queries
- databases