Book Image

Mastering PostgreSQL 9.6

By : Hans-Jürgen Schönig
Book Image

Mastering PostgreSQL 9.6

By: Hans-Jürgen Schönig

Overview of this book

PostgreSQL is an open source database used for handling large datasets (Big Data) and as a JSON document database. It also has applications in the software and web domains. This book will enable you to build better PostgreSQL applications and administer databases more efficiently. We begin by explaining the advanced database design concepts in PostgreSQL 9.6, along with indexing and query optimization. You will also see how to work with event triggers and perform concurrent transactions and table partitioning, along with exploring SQL and server tuning. We will walk you through implementing advanced administrative tasks such as server maintenance and monitoring, replication, recovery and high availability, and much more. You will understand the common and not-so-common troubleshooting problems and how you can overcome them. By the end of this book, you will have an expert-level command of the advanced database functionalities and will be able to implement advanced administrative tasks with PostgreSQL.
Table of Contents (14 chapters)
Free Chapter
1
PostgreSQL Overview

Handling Advanced SQL

In the previous chapter, you learned about indexing as well as about PostgreSQL's ability to run custom indexing code to speedup queries. In this chapter you will learn about advanced SQL. Most readers of this book will have some experience of using SQL. However, experience has shown that those advanced features outlined in this book are not widely known and therefore it makes sense to cover them in this context to help people to achieve their goals faster and more efficiently.

The topics of this chapter are:

  • Grouping sets
  • Ordered sets
  • Hypothetical aggregates
  • Windowing functions and analytics

At the end of the chapter, you will be able to understand and use advanced SQL.