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
PostgreSQL Overview

Log Files and System Statistics

In the previous chapter, you learned a lot about advanced SQL and ways to see SQL in a different light. However, database work does not only consist of hacking up fancy SQL. Sometimes, it is also about keeping things running in a professional manner. To do that, it is highly important to keep an eye on system statistics, log files, and so on. Monitoring is the key to running databases professionally.

In this chapter, you will learn these topics:

  • Collecting runtime statistics
  • Creating log files
  • Gathering important information
  • Making sense of a database statistics