chapter 1Database Fundamentals
This chapter introduces fundamental concepts and definitions regarding databases, including properties common to databases, prevalent database models, a brief history of databases, and the rationale for focusing on the relational model.
CHAPTER OBJECTIVES
In this chapter, the reader should:
• Understand the properties of a database and terms commonly used to describe databases.
• Identify the prevalent database models.
• Understand the history of databases.
• Explain why a focus on relational databases makes sense.
Properties of a Database
A database is a collection of interrelated data items that are managed as a single unit. This definition is deliberately broad because there is so much variety across the various ...
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