Algebraic ADT Specifications of an Extended Relational Algebra and their Conversion into a Working Prototype.
Luigi LavazzaStefano Crespi-ReghizziPublished in: Algebraic Methods (1987)
Keyphrases
- relational algebra
- relational model
- expressive power
- query language
- data model
- normal form
- relational calculus
- relational database systems
- first order logic
- complex objects
- relational data model
- relational operators
- transitive closure
- database query languages
- data analysis
- algebraic operations
- database technology
- relational databases
- recursive queries
- aggregate functions
- multi dimensional
- high level
- join operator
- summary tables