Documents 1 Relational Database Development Alison Taylder [email protected]@yahoo.co.uk Consultant...

Relational Database Development Alison Taylder [email protected] Consultant ITC-ILO, Turin 25th November 2004 What is a Database ? A database is a structured collection…

Documents Chapter 2

Chapter 2 Entity relationship model Concept Entity set Attribute Relationship Set Entity-Relationship Diagram Entity Sets A database can be modeled as: a collection of entities,…

Documents Entity-Relationship Modelling

Entity-Relationship Modelling Entity Sets Relationship Sets Design Issues Mapping Constraints Keys E-R Diagram A data model is a collection of tools for describing data,…