Schema Evolution and the Relational Algebra.
L. Edwin McKenzieRichard T. SnodgrassPublished in: Inf. Syst. (1990)
Keyphrases
- schema evolution
- relational algebra
- data model
- relational model
- query language
- database systems
- relational database systems
- object oriented databases
- relational calculus
- normal form
- data integration
- expressive power
- object model
- data types
- databases
- object oriented
- database management systems
- first order logic
- xml documents
- database schema
- database design
- schema mappings
- privacy preservation
- artificial intelligence
- database
- conceptual model
- database technology
- d objects
- computer aided design