Part I. Introduction
SQL is a compact and powerful language for working with databases. Despite this compactness, it cannot be described simply in a few chapters. We would do the language no justice then. Vendors of SQL products have made it even more complicated by implementing different SQL dialects. For a structured explanation, we start this book with a number of introductory chapters that form the first part.
In Chapter 1, “Introduction to SQL,” we provide an overall description of SQL, give the background and history of SQL, and outline several application areas of the language. We also describe a number of concepts in the relational model (the theory behind SQL).
This book contains many examples and exercises. So that you do not have to learn ...
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