Learning Data Modelling by Example - Database Answers

← Back to document page

Data Modeling by Example : Volume 1 1 Data Modelling by Example Barry Williams Data Modeling by Example : Volume 1 2 Table of Contents Table of Contents ........................................ ........................................ ....................................... 1 Welcome ........................................ ........................................ ........................................ ............ 4 1. Some Basic Concepts ........................................ ........................................ ............................ 4 2. Tourist Guide to Washington DC ........................................ ........................................ ...........25 3. Tourist Guide to Windsor Castle in England.

1.1.1 What is this? This chapter is a description of the relational theory as originally established by Ted Codd, who, at the time, was a research scientist with IBM. 1.1.2 Why is it important? The basic concepts are important because the relational theory is very powerful and