'Foreign key attributes' diaporamas de présentation

Chapter 7 Relational Database Design by ER- and EER-to-Relational Mapping

Chapter 7 Relational Database Design by ER- and EER-to-Relational Mapping. Dr. Bernard Chen Ph.D. University of Central Arkansas. Chapter Outline. ER-to-Relational Mapping Algorithm Step 1: Mapping of Regular Entity Types Step 2: Mapping of Weak Entity Types

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Chapter 7 Relational Database Design by ER- and EER-to-Relational Mapping

Chapter 7 Relational Database Design by ER- and EER-to-Relational Mapping. Dr. Bernard Chen Ph.D. University of Central Arkansas Fall 2008. Chapter Outline. ER-to-Relational Mapping Algorithm Step 1: Mapping of Regular Entity Types Step 2: Mapping of Weak Entity Types

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Logical Design database design

Logical Design database design. Conceptual Database Designing Provides concepts that are close to the way many users perceive data. ( modeling the collected information at a high-level of abstraction) Logical Database Designing

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ER/EER to Relational Mapping Chapter 9

ER/EER to Relational Mapping Chapter 9. STEP 1. ENTITY TYPE E (non weak) -> NEW RELATION T RELATION T: includes all simple attributes (non composite, single-valued) from E includes only simple component attributes of a composite attribute from E (they are on their own now)

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Transforming ER & EER diagrams into Relations (Chapter 9)

Transforming ER & EER diagrams into Relations (Chapter 9). Overview. A relatively straightforward process with a well-defined set of rules. Many CASE Tools can automatically perform many of the conversion steps. CASE tools often cannot model complex data relationships.

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Conversion Procedure of the ER Model to the Relational Model

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Seminar: Introduction to relational databases

Seminar: Introduction to relational databases. Introduction to the database field: The Relational Model. The Relational Model. A sound theoretical data model ( Codd , 1970). Based on the mathematical theory of relations, sets and first order predicate logic.

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Chapter 5 The Relational Data Model

Chapter 5 The Relational Data Model. By Yue Lu CS157B Spring 2008 Instructor: Dr.Lee. Relational Model Concepts. The Relational Model of Data is based on the concept of a Relation A Relation is a two-dimensional table The columns of the table represent attributes

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Chapter 5 The Relational Data Model

Chapter 5 The Relational Data Model. By Yue Lu CS157B Spring 2008 Instructor: Dr.Lee. Relational Model Concepts. The Relational Model of Data is based on the concept of a Relation A Relation is a two-dimensional table The columns of the table represent attributes

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complete with Foreign key attributes for Become Exceptional/tutorialoutletdotcom

FOR MORE CLASSES VISIT www.tutorialoutlet.com You will draw a Physical ERD (Entity Relationship Diagram), complete with Foreign key attributes for the following case. You must state all assumptions and questions necessary. Moreover, you should make some effort to define attributes (i.e. fields as well as primary and foreign keys) for the entities. As ever, please state assumptions underlying your model as well as questions generated by it.

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