Data exchange: semantics and query answering.
Ronald FaginPhokion G. KolaitisRenée J. MillerLucian PopaPublished in: Theor. Comput. Sci. (2005)
Keyphrases
- data exchange
- query answering
- schema mappings
- closed world assumption
- inconsistent databases
- data integration
- query containment
- open world
- data integration systems
- query answers
- conjunctive queries
- data complexity
- answering queries
- closed world
- data management
- database schema
- xml data exchange
- unions of conjunctive queries
- query rewriting
- xml queries
- consistent query answering
- xml schema
- integrity constraints
- conp complete
- data model
- formal semantics
- inclusion dependencies
- consistent answers
- logic programming
- data mining
- complexity of query answering
- relational databases
- tuple generating dependencies
- target schema
- dl lite
- owl ontologies