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Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model. Entity Sets Relationship Sets Design Issues Mapping Constraints Keys E-R Diagram Extended E-R Features Design of an E-R Database Schema Reduction of an E-R Schema to Tables. Entity Sets. A database can be modeled as: a collection of entities,

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832 views • 73 slides
Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model. Entity Sets Relationship Sets Design Issues Mapping Constraints Keys E-R Diagram Extended E-R Features Design of an E-R Database Schema Reduction of an E-R Schema to Tables. Entity Sets. A database can be modeled as: a collection of entities,

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1.07k views • 73 slides

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750 views • 61 slides
Chapter 5 Normalization

Chapter 5 Normalization

CSC 3800 Database Management Systems. Spring 2011. Time: 10:00 to 11:15. Meeting Days: MF. Location: Oxendine 1202. Textbook : Databases Illuminated , Author: Catherine M. Ricardo, 2004, Jones & Bartlett Publishers. Chapter 5 Normalization. Dr. Chuck Lillie. Objectives of Normalization.

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740 views • 56 slides
Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model

Chapter 2: Entity-Relationship Model. Entity Sets Relationship Sets Design Issues Mapping Constraints Keys E-R Diagram Extended E-R Features Design of an E-R Database Schema Reduction of an E-R Schema to Tables. Entity Sets. A database can be modeled as: a collection of entities,

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799 views • 54 slides
The relational model

The relational model

The relational model. Concepts and terminology Operations (relational algebra) Integrity constraints. Relational Databases. All data is organised in tables with atomic values Associations are represented by primary key/foreign key connections

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377 views • 22 slides
RELATIONAL DATABASES

RELATIONAL DATABASES

RELATIONAL DATABASES. Relational data Structure. RELATION: Table with columns and rows ATTRIBUTE: Column of a relation DOMAIN: Set of allowable values for one or more attributes TUPLE: Row of a relation DEGREE of a relation: Number of attributes CARDINALITY of a relation:

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433 views • 19 slides

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