|
Introduction
Data Modeling
Overview
E-R
Model
Database
Design
Data
Objects
Basic
Schema
Refining
the E-R
Primary
Keys
Attributes
Hierarchies
Integrity
Rules
Bibliography
Relational Model
Overview
Data
Structure
Notation
Relational
Table
Relationships
Data
Integrity
Relational
Data
Normalization
Advanced
|
|
Introduction
This document is an informal introduction to data modeling using
the Entity-Relationship (ER) approach. It is intended for someone
who is familiar with relational databases but who has no experience
in data modeling. The basic techniques described are applicable to
the development of microcomputer based relational database
applications as well as those who use relational database servers
such as MS SQL Server or Oracle.
The document is a practical guide, not an academic paper on
either relational database design or data modeling. Readers
interested in a rigorous treatment of these topics should consult
the
bibliography
.
|