Keyphrases
- normal form
- fuzzy sets
- database design
- relational databases
- functional dependencies
- nested relations
- fuzzy logic
- multi valued
- membership functions
- relational algebra
- data dependencies
- information content
- relational database theory
- rough sets
- prime implicates
- fuzzy measures
- knowledge compilation
- null values
- boolean expressions
- data model
- disjunctive normal form
- xml documents