'Relation variable' presentation slideshows

Chapter 3: Relational Model

Chapter 3: Relational Model. Structure of Relational Databases Relational Algebra Tuple Relational Calculus Domain Relational Calculus Extended Relational-Algebra-Operations Modification of the Database Views. Basic Structure.

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Chapter 3

Chapter 3. An Introduction to Relational Databases. Definitions:. A database is a collection of persistent data that is used by the application systems of some given enterprise. A relational database, or relational DBMS, is one that follows the relational model.

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Relational data objects

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