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Chapter 3: Relational Model

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. Example of a Relation. About Relational Model. Order of tuples not important

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1.29k views • 126 slides
Chapter 3: Relational Model

Chapter 3: Relational Model

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

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1.38k views • 123 slides
Chapter 3: Relational Model

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. Example of a Relation. Basic Structure.

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1.31k views • 112 slides
Advantages of E.R. Model Exceptional conceptual simplicity Visual representation

Advantages of E.R. Model Exceptional conceptual simplicity Visual representation

Advantages of E.R. Model Exceptional conceptual simplicity Visual representation Effective communication tool Integrated with the relational data model Disadvantages of E.R. Model Limited constraint representation Limited relationship representation No data manipulation language

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550 views • 54 slides
Chapter 2: Introduction to Relational Model

Chapter 2: Introduction to Relational Model

Chapter 2: Introduction to Relational Model. Structure of Relational Databases Fundamental Relational-Algebra-Operations. Example of the instructor Relation. attributes (or columns). tuples (or rows). Attribute Types.

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234 views • 21 slides
Chapter 2 : Introduction to Relational Model

Chapter 2 : Introduction to Relational Model

Chapter 2 : Introduction to Relational Model. Example of a Relation. attributes (or columns). tuples (or rows). Attribute Types. The set of allowed values for each attribute is called the domain of the attribute

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174 views • 16 slides
Chapter 3: Relational Model

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. Example of a Relation. Basic Structure.

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449 views • 15 slides

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