An efficient query evaluation in a mediator based on implementation plan.
Kil Hong JooWon Suk LeePublished in: Inf. Sci. (2006)
Keyphrases
- query evaluation
- conjunctive queries
- data management
- data complexity
- deductive databases
- query language
- query processing
- transitive closure
- efficient query evaluation
- probabilistic databases
- disjunctive deductive databases
- query optimizer
- xml data
- querying xml documents
- semi structured
- twig queries
- tree pattern queries
- regular expressions
- null values
- database
- data model
- database systems