Towards Controlled Query Evaluation for Incomplete First-Order Databases.
Joachim BiskupCornelia TadrosLena WiesePublished in: FoIKS (2010)
Keyphrases
- query evaluation
- null values
- databases
- data management
- efficient query evaluation
- conjunctive queries
- deductive databases
- query language
- query processing
- transitive closure
- xml data
- constraint databases
- probabilistic databases
- database systems
- database
- disjunctive deductive databases
- first order logic
- data complexity
- data model
- integrity constraints
- relational databases
- data integration
- querying xml documents
- probabilistic xml
- query engine
- signature file
- inverted lists
- expressive power
- tree pattern queries