The Powerset Algebra as a Result of Adding Programming Constructs to the Nested Relational Algebra.
Marc GyssensDirk Van GuchtPublished in: SIGMOD Conference (1988)
Keyphrases
- relational algebra
- nested relational
- expressive power
- relational model
- query language
- aggregate functions
- data model
- normal form
- first order logic
- relational database systems
- relational calculus
- transitive closure
- relational data model
- nested relations
- complex objects
- database query languages
- relational databases
- functional dependencies
- algebraic operations
- join operator
- database systems
- relational operators
- incomplete information
- recursive queries
- null values
- multi agent systems