Extending the Relational Algebra to Capture Less Meaning.
T. H. MerrettPublished in: SIGMOD Rec. (1984)
Keyphrases
- relational algebra
- relational model
- expressive power
- data model
- query language
- normal form
- relational calculus
- relational database systems
- relational databases
- transitive closure
- complex objects
- relational data model
- first order logic
- database technology
- database query languages
- summary tables
- multi agent
- null values
- algebraic operations
- relational operators
- join operator