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


This chapter started with tuning queries and continued with how caching benefits the execution of a query. So simply writing a query and expecting a good performance is not always enough. There are multiple ways to tune queries for better performance, which we covered them in this chapter, to help you write queries. We also covered how to tweak the configuration settings to get the best performance from disks, and how to use Optimizer hints to let it choose the best plan. We discussed generating and reading Explain Plan, and each node in the Explain Plan. In the next chapter, we will cover in-built extensions in PostgreSQL, how to build contrib modules, and dblinks. These days many applications need images to be stored in their database as part of their operations, so we will also cover large objects in the next chapter.