Query Answering using Views in the Presence of Dependencies.
Foto N. AfratiNikos KiourtisPublished in: NTII (2008)
Keyphrases
- query answering
- query rewriting
- data exchange
- tuple generating dependencies
- integrity constraints
- incomplete information
- conjunctive queries
- data integration
- regular path queries
- data integration systems
- answering queries
- data complexity
- inconsistent databases
- dl lite
- query answers
- schema mappings
- query relaxation
- datalog programs
- inclusion dependencies
- query containment
- database
- xml data exchange
- data management