A Relational Algebra as a Query Language for Temporal DATALOG.
Mehmet A. OrgunWilliam W. WadgePublished in: DEXA (1992)
Keyphrases
- relational algebra
- query language
- expressive power
- relational calculus
- data model
- transitive closure
- object oriented
- relational database systems
- database query languages
- complex objects
- query evaluation
- normal form
- relational data model
- temporal data
- recursive queries
- relational model
- database
- relational operators
- relational query languages
- aggregate functions
- conjunctive queries
- probabilistic databases
- sparql queries
- deductive databases
- null values
- database management systems
- query processing