Efficient Query Answering over Conceptual Schemas of Relational Databases : Technical Report
Mantas SimkusEvaldas TarozaLina LubyteDaniel TrivellatoZivile NorkunaitePublished in: CoRR (2006)
Keyphrases
- query answering
- relational databases
- technical report
- data exchange
- data complexity
- data integration
- incomplete information
- data integration systems
- integrity constraints
- answering queries
- database
- inconsistent databases
- conjunctive queries
- conceptual schemas
- database schema
- relational data
- np complete
- object oriented
- expert systems
- case study
- data sets