Improved Bottom-Up Query Evaluation in Positive Disjunctive Databases.
Stefan BrassPublished in: GI Jahrestagung (1994)
Keyphrases
- query evaluation
- databases
- data management
- disjunctive deductive databases
- efficient query evaluation
- conjunctive queries
- query language
- deductive databases
- null values
- data complexity
- query processing
- xml data
- transitive closure
- constraint databases
- probabilistic databases
- data model
- database systems
- database
- data integration
- knowledge discovery
- inverted lists
- querying xml documents
- datalog programs
- query answers
- incomplete information
- xml streams
- relational databases
- data structure
- data sets
- query engine
- xml databases
- tree pattern queries