Relationships Between Closure Operations and Choice Functions - Equivalent Descriptions of a Family of Functional Dependencies.
Nghia D. VuPublished in: Acta Cybern. (2004)
Keyphrases
- functional dependencies
- semantic data models
- relational databases
- integrity constraints
- database design
- normal form
- database schemes
- relational model
- conflict free
- xml documents
- approximate functional dependencies
- data dependencies
- database schema
- join dependencies
- inclusion dependencies
- cardinality constraints
- universal relation
- logical implication
- set of functional dependencies
- horn theories
- databases
- special case
- inference rules
- null values
- user defined
- database applications
- database systems