Functional Dependencies in Relational Expressions Based on Or-Sets.
Michinori NakataTetsuya MuraiPublished in: Rough Sets and Current Trends in Computing (2002)
Keyphrases
- functional dependencies
- relational databases
- relational model
- database schema
- entity relationship
- relational schema
- normal form
- integrity constraints
- database design
- multivalued dependencies
- relational operators
- relational data model
- relational data
- data dependencies
- relational algebra
- semantic data models
- functional and multivalued dependencies
- database schemes
- inclusion dependencies
- xml documents
- logical implication
- conflict free
- approximate functional dependencies
- universal relation
- databases
- cardinality constraints
- object oriented
- relational database systems
- user defined
- set of functional dependencies
- horn theories
- join dependencies
- data model
- natural language
- database technology
- database
- answering queries using views