Chapter 2 Database Environment Transparencies © Pearson Education Limited 1995, 2005 1 Chapter 2 - Objectives x x x Purpose of three-level database architecture. Contents…

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Slide 1 1 Chapter 2 Slide 2 2 Chapter 2 - Objectives Purpose of three-level database architecture. Purpose of three-level database architecture. Contents of external, conceptual,…

Slide 1 Chapter 2 Database Environment Pearson Education © 2014 Slide 2 Chapter 2 - Objectives Purpose of three-level database architecture. Contents of external, conceptual,…

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Slide 1 1 Chapter 2 Database Environment Transparencies Last Updated: Pebruari 2010 By M. Arief Updated by RSO Feb 2011 http://arief.ismy.web.id Slide 2 2 Chapter 2 - Objectives…

PowerPoint Presentation Lecture2: Database Environment Prepared by L. Nouf Almujally 1 Ref. Chapter2 Lecture2 1 Topics Covered Overviews Three-level Architecture. Schemas…

Database Environment Chapter 2 Data Independence Sometimes the way data are physically organized depends on the requirements of the application . Result: it is impossible…

Database Environment Chapter 2 Data Independence Sometimes the way data are physically organized depends on the requirements of the application . Result: it is impossible…

Lecture 5 Lecture 5 Some solutions on the written examination: Primary key: Unique identifier for each row in a table. Not allowed to be null. Cascade update: A constraint…