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Account schema - PowerPoint PPT Presentation

2. Relational Model

2. Relational Model. Attribute Types. Each attribute of a relation has a name The set of allowed values for each attribute is called the domain of the attribute Attribute values are (normally) required to be atomic ; that is, indivisible

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Chapter 3 relational model

Chapter 3 relational model. 3.1 An Informal Look at the Relational Model 3.2 The Relational Algebra 3.3 Extended Relational-Algebra Operation 3.4 Relational Calculus 3.5 The Tuple Relational Calculus 3.6 The Domain Relational Calculus 3.7 Modification of the Database

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Account schema - PowerPoint PPT Presentation

2. Relational Model

Chapter 3 relational model