A Scalable and Efficient Query Answering for a Context and Schema Mediation.
Saber BenharzallahOkba KazarPublished in: J. Convergence Inf. Technol. (2010)
Keyphrases
- query answering
- data exchange
- data complexity
- data integration
- integrity constraints
- schema mappings
- conjunctive queries
- incomplete information
- answering queries
- data management
- data model
- query rewriting
- inconsistent databases
- xml schema
- database schema
- query relaxation
- xml data exchange
- tuple generating dependencies
- database
- heterogeneous data sources
- conceptual model
- data warehouse
- multi agent
- case study