Extending relational algebra with similarities.
Melita HajdinjakGavin M. BiermanPublished in: Math. Struct. Comput. Sci. (2012)
Keyphrases
- relational algebra
- relational model
- data model
- query language
- normal form
- expressive power
- complex objects
- relational database systems
- relational calculus
- transitive closure
- first order logic
- relational data model
- relational databases
- similarity measure
- database query languages
- functional dependencies
- aggregate functions
- null values
- summary tables
- object oriented
- databases
- dynamic environments
- relational operators
- database