Abstract
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. © 1982, ACM. All rights reserved.
Cite
CITATION STYLE
APA
Date, C. J. (1982). A formal definition of the relational model. ACM SIGMOD Record, 13(1), 18–29. https://doi.org/10.1145/984514.984515
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