Improving Query Evaluation with Approximate Functional Dependency Based Decompositions.
Chris GiannellaMehmet M. DalkilicDennis P. GrothEdward L. RobertsonPublished in: BNCOD (2002)
Keyphrases
- query evaluation
- functional dependencies
- approximate functional dependencies
- query language
- relational databases
- integrity constraints
- conjunctive queries
- data management
- xml data
- normal form
- query processing
- transitive closure
- database design
- null values
- join dependencies
- probabilistic databases
- data complexity
- data dependencies
- relational model
- efficient query evaluation
- conflict free
- xml documents
- constraint databases
- database schema
- user defined
- query optimizer
- data cleaning
- data model
- expressive power
- query answers
- range queries