Functional Dependencies and the Semilattice of Closed Classes.
János DemetrovicsLeonid LibkinIlya B. MuchnikPublished in: MFDBS (1989)
Keyphrases
- functional dependencies
- database design
- integrity constraints
- normal form
- relational databases
- relational model
- semantic data models
- conflict free
- database schemes
- universal relation
- database schema
- inclusion dependencies
- approximate functional dependencies
- entity relationship
- data dependencies
- functional and multivalued dependencies
- user defined
- cardinality constraints
- relational algebra
- horn theories
- multivalued dependencies
- set of functional dependencies
- xml documents
- tuple generating dependencies
- relational database theory
- case study