Introduction
This book was written to aid students in database classes and to help database practitioners in understanding how to arrive at a definite, clear database design using an entity-relationship (ER) diagram. In designing a database with an ER diagram, we recognize that this is but one way to arrive at the objective: the database. There are other design methodologies that also produce databases, but an ER diagram is the most common. The ER diagram is a subset of what are called “semantic models.” As we go through this material, we occasionally point out where other models differ from the ER model.
The ER model is one of the best-known tools for logical database design. Within the database community, it is considered a natural and ...
Get Database Design Using Entity-Relationship Diagrams, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
