Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
A relational model of data for large shared data banks
Communications of the ACM
An Introduction to Database Systems
An Introduction to Database Systems
Normal forms and relational database operators
SIGMOD '79 Proceedings of the 1979 ACM SIGMOD international conference on Management of data
Data models in database management
Proceedings of the 1980 workshop on Data abstraction, databases and conceptual modeling
Comparison of four relational data model specifications
ACM SIGMOD Record
A straightforward formalization of the relational model
ACM SIGMOD Record
Mappings make data processing go 'round
GTTSE'05 Proceedings of the 2005 international conference on Generative and Transformational Techniques in Software Engineering
| Hi-index | 0.01 |
The relational model of data, originally introduced by Codd in [1], has three components: (1) a set of objects (relations, domains, etc.); (2) a set of operators (union, project, etc.); (3) a set of general integrity rules. The purpose of this paper is to provide a formal definition of each of these three components.