Converting SQL queries into relational algebra.
Mohammad DadashzadehDavid W. StemplePublished in: Inf. Manag. (1990)
Keyphrases
- relational algebra
- sql queries
- relational database systems
- relational model
- relational databases
- expressive power
- normal form
- data model
- query language
- complex objects
- relational calculus
- relational operators
- relational data model
- relational queries
- database technology
- first order logic
- aggregate functions
- duplicate elimination
- database schema
- functional dependencies
- xml queries
- probabilistic databases
- database design
- structured query language
- transitive closure
- xml documents
- machine learning
- database
- nearest neighbor
- databases