Keyphrases
- functional dependencies
- integrity constraints
- relational databases
- database design
- normal form
- database schemes
- relational model
- conflict free
- approximate functional dependencies
- distributed systems
- inclusion dependencies
- user defined
- data dependencies
- xml documents
- entity relationship
- database schema
- cardinality constraints
- logical implication
- dynamic constraints
- universal relation
- databases
- horn theories
- knowledge base
- description logics
- conjunctive queries
- database applications