Remarks on the Algebra of Non First Normal Form Relations.
Gerhard JaeschkeHans-Jörg SchekPublished in: PODS (1982)
Keyphrases
- normal form
- relational algebra
- relational data model
- relational calculus
- functional dependencies
- data dependencies
- database design
- relational databases
- nested relations
- null values
- set of functional dependencies
- relation algebra
- relational database systems
- universal relation
- information content
- data model
- query language
- relational model
- database technology
- conceptual model
- real numbers
- expressive power
- aggregate functions
- propositional formulas
- boolean expressions
- query processing
- database systems
- case study