Answering Non-Monotonic Queries in Relational Data Exchange
André HernichPublished in: Log. Methods Comput. Sci. (2011)
Keyphrases
- data exchange
- query answering
- answering queries
- relational queries
- unions of conjunctive queries
- query answers
- data integration
- query rewriting
- query containment
- conjunctive queries
- database schema
- schema mappings
- xml data exchange
- complexity of query answering
- data management
- data complexity
- data model
- data sources
- query language
- xml queries
- query processing
- open world
- tuple generating dependencies
- database
- database queries
- query evaluation
- closed world
- lingua franca
- inconsistent databases
- probabilistic databases
- relational model
- xml schema
- consistent query answering
- relational databases