Applying relational algebra and Rel.
Rudolf BerghammerAgnieszka RusinowskaHarrie C. M. de SwartPublished in: Eur. J. Oper. Res. (2007)
Keyphrases
- relational algebra
- expressive power
- relational model
- query language
- normal form
- data model
- relational database systems
- first order logic
- relational calculus
- relational operators
- complex objects
- relational data model
- data mining
- database query languages
- transitive closure
- relational databases
- database
- domain knowledge
- query processing
- database systems
- null values
- algebraic operations
- artificial intelligence
- join operator
- summary tables