The Relational Data Model
In this chapter we present the core theory of relational databases. As described in Subsection 1.7.1 of Section 3.1 of Chapter 1 the relational model has three components: a structural part, a manipulative part and an integrity part. Thus we can view this chapter as consisting of three mini chapters one corresponding to each component of the relational model. The data structure of the model, i.e. the relation, and the relation schema over which it is defined, is presented in Section 3.1. In this section the simple tabular form of database relations is given a set-theoretic formalism.
KeywordsInference Rule Axiom System Integrity Constraint Relation Schema Relational Algebra
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