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Beginning Oracle SQL: for Oracle Database 12c, Third Edition by Melanie Caffrey, Inger Jørgensen, Tim Gorman, Lex De Haan

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CHAPTER 1

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Relational Database Systems and Oracle

The focus of this book is writing SQL in Oracle, which is a relational database management system. This first chapter provides a brief introduction to relational database systems in general, followed by an introduction to the Oracle software environment. The main objective of this chapter is to help you find your way in the relational database jungle and to get acquainted with the most important database terminology.

The first three sections discuss the main reasons for automating information systems using databases, what needs to be done to design and build relational database systems, and the ...

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