Object Functional Dependencies and the Semantics of Class Extensions.
S. Kazem LellahiNicolas SpyratosM'Bayang ThiamPublished in: BDA (1996)
Keyphrases
- functional dependencies
- database schemes
- conflict free
- relational databases
- normal form
- integrity constraints
- database design
- relational model
- relational schema
- nested relations
- relational data model
- data dependencies
- dynamic constraints
- entity relationship
- database schema
- inconsistent databases
- logical implication
- universal relation
- inclusion dependencies
- null values
- complex objects
- conceptual model
- user defined
- approximate functional dependencies
- cardinality constraints
- functional and multivalued dependencies
- consistent query answering
- horn theories
- xml keys
- answering queries using views
- database systems
- conceptual schema
- automated reasoning