Translation with Optimization from Relational Calculus to Relational Algebra Having Aggregate Functions.
Ryohei NakanoPublished in: ACM Trans. Database Syst. (1990)
Keyphrases
- relational algebra
- relational calculus
- aggregate functions
- expressive power
- query language
- relational model
- normal form
- data model
- nested relational
- complex objects
- first order logic
- relational database systems
- relational data model
- database query languages
- recursive queries
- type checking
- transitive closure
- relational databases
- database
- database technology
- functional dependencies
- distributed systems
- multi dimensional
- object oriented
- management system
- relational algebra expressions