The Historical Relational Data Model (HRDM) and Algebra Based on Lifespans.
James CliffordAlbert CrokerPublished in: ICDE (1987)
Keyphrases
- relational data model
- relational algebra
- data model
- query language
- relational database systems
- functional dependencies
- relational databases
- relational model
- entity relationship
- relational calculus
- complex objects
- data types
- database
- expressive power
- databases
- abstract data types
- first order logic
- relational schema
- sql queries
- database management systems
- normal form
- object oriented
- transitive closure
- data integration
- database design
- data modeling
- xml data
- database technology
- information systems
- object relational
- user defined