Book Image

Learning PostgreSQL 10 - Second Edition

Book Image

Learning PostgreSQL 10 - Second Edition

Overview of this book

PostgreSQL is one of the most popular open source databases in the world, supporting the most advanced features included in SQL standards. This book will familiarize you with the latest features released in PostgreSQL 10. We’ll start with a thorough introduction to PostgreSQL and the new features introduced in PostgreSQL 10. We’ll cover the Data Definition Language (DDL) with an emphasis on PostgreSQL, and the common DDL commands supported by ANSI SQL. You’ll learn to create tables, define integrity constraints, build indexes, and set up views and other schema objects. Moving on, we’ll cover the concepts of Data Manipulation Language (DML) and PostgreSQL server-side programming capabilities using PL/pgSQL. We’ll also explore the NoSQL capabilities of PostgreSQL and connect to your PostgreSQL database to manipulate data objects. By the end of this book, you’ll have a thorough understanding of the basics of PostgreSQL 10 and will have the necessary skills to build efficient database solutions.
Table of Contents (23 chapters)
Title Page
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Chapter 1. Relational Databases

This chapter, and the next chapters, will provide a high-level overview of topics related to database development. These topics will cover the theoretical aspect of relational databases. The first two chapters try to summarize theoretical topics that are seen on a daily basis. Understanding these theoretical concepts will enable the developers to not only come up with clean designs, but also to master relational databases.

This chapter is not restricted to learning PostgreSQL, but covers all relational databases. The topics covered in this chapter include the following:

  • Database management systems: Understanding the different database categories enables the developer to utilize the best in each world
  • Relational algebra: Understanding relational algebra enables the developers to master the SQL language, especially SQL code rewriting
  • Data modeling: Using data modeling techniques leads to better communication