A Relational-Calculus Query Language for Historical Databases.
Mostafa A. BassiouniMark J. LlewellynPublished in: Comput. Lang. (1992)
Keyphrases
- query language
- relational calculus
- relational algebra
- data model
- databases
- relational data model
- database
- expressive power
- structured query language
- complex objects
- object oriented
- relational database systems
- arithmetic constraints
- database systems
- relational databases
- relational model
- null values
- query evaluation
- xml data
- conceptual model
- knowledge discovery
- database design
- transitive closure
- aggregate functions
- data sources
- database query languages
- data integration
- database applications
- recursive queries
- user defined
- normal form
- data warehouse
- relational algebra expressions
- xml documents
- finitely representable