Validation of schema mappings with nested queries.
Guillem RullCarles FarréErnest TenienteToni UrpíPublished in: Comput. Sci. Inf. Syst. (2013)
Keyphrases
- schema mappings
- data exchange
- data integration systems
- xml data exchange
- data integration
- database schema
- query answering
- query evaluation
- query language
- conjunctive queries
- query processing
- data complexity
- query containment
- data sources
- high level specifications
- query rewriting
- answering queries
- data mining
- finite sets
- schema evolution
- database
- source schema
- xml schema
- high level declarative
- database queries
- tuple generating dependencies
- knowledge representation