Constraints for Query Optimization in Deductive Databases.
James HarlandKotagiri RamamohanaraoPublished in: Future Databases (1992)
Keyphrases
- query optimization
- deductive databases
- semantic query optimization
- constraint checking
- database systems
- integrity constraints
- query evaluation
- cost model
- multidatabase systems
- query processing
- logic programming
- xml data
- fixpoint
- query optimizer
- query execution
- cardinality estimation
- selectivity estimation
- integrity checking
- query containment
- logic programs
- datalog programs
- recursive queries
- continuous queries
- artificial intelligence
- functional dependencies
- query rewriting
- data model
- relational data
- xml documents