Book Image

PostgreSQL Development Essentials

By : Baji Shaik
Book Image

PostgreSQL Development Essentials

By: Baji Shaik

Overview of this book

PostgreSQL is the most advanced open source database in the world. It is easy to install, configure, and maintain by following the documentation; however, it’s difficult to develop applications using programming languages and design databases accordingly. This book is what you need to get the most out of PostgreSQL You will begin with advanced SQL topics such as views, materialized views, and cursors, and learn about performing data type conversions. You will then perform trigger operations and use trigger functions in PostgreSQL. Next we walk through data modeling, normalization concepts, and the effect of transactions and locking on the database. The next half of the book covers the types of indexes, constrains, and the concepts of table partitioning, as well as the different mechanisms and approaches available to write efficient queries or code. Later, we explore PostgreSQL Extensions and Large Object Support in PostgreSQL. Finally, you will perform database operations in PostgreSQL using PHP and Java. By the end of this book, you will have mastered all the aspects of PostgreSQL development. You will be able to build efficient enterprise-grade applications with PostgreSQL by making use of these concepts
Table of Contents (17 chapters)
PostgreSQL Development Essentials
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface

Summary


In this chapter, we looked at different types of indexes and constraints that PostgreSQL supports, how they are used in the real world with examples, and what happens if you violate a constraint. It not only helps you identify the right index for your data, but also improves the performance of the database. Every type of index or constraint has its own identification and need. Some indexes or constraints may not be portable to other RDBMSs, some may not be needed, or sometimes you might have chosen the wrong one for your needs. So be careful to choose the right one from which you get the benefit and one which satisfies your exact needs. In the next chapter, we will talk about the benefits of table partitioning in PostgreSQL and how to implement them. We will also cover managing partitions and alternate partitioning options.