Null values in fuzzy databases.
Guy De TréRita M. M. De CaluweHenri PradePublished in: J. Intell. Inf. Syst. (2008)
Keyphrases
- null values
- databases
- integrity constraints
- relational databases
- containment of conjunctive queries
- relational database theory
- query evaluation
- incomplete information
- data dependencies
- normal form
- relational algebra
- functional dependencies
- database
- inclusion dependencies
- data warehouse
- conjunctive queries
- data model
- predicate logic
- response time
- database applications
- data management
- relational model
- query language
- update operations
- data warehousing
- database systems