Documents Database systems Thomas Connolly ch03

Chapter 3 The Relational Model Transparencies © Pearson Education Limited 1995, 2005 Chapter 3 - Objectives x x x x x x x Terminology of relational model. How tables are…

Education RDBMS Algebra

1. The Relational Algebra 2. Mathematical Relations For two sets D1 and D2, the Cartesian product, D1 X D2 , is the set of all ordered pairs in which the first element is…