Book Image

Mastering PostgreSQL 15 - Fifth Edition

By : Hans-Jürgen Schönig
Book Image

Mastering PostgreSQL 15 - Fifth Edition

By: Hans-Jürgen Schönig

Overview of this book

Starting with an introduction to the newly released features of PostgreSQL 15, this updated fifth edition will help you get to grips with PostgreSQL administration and how to build dynamic database solutions for enterprise apps, including designing both physical and technical aspects of the system. You'll explore advanced PostgreSQL features, such as logical replication, database clusters, advanced indexing, and user management to manage and maintain your database. You'll then work with the PostgreSQL optimizer, configure PostgreSQL for high speed, and move from Oracle to PostgreSQL. Among the other skills that the book will help you build, you’ll cover transactions, handling recursions, working with JSON and JSONB data, and setting up a Patroni cluster. It will show you how to improve performance with query optimization. You'll also focus on managing network security and work with backups and replication while exploring useful PostgreSQL extensions that optimize the performance of large databases. By the end of this PostgreSQL book, you’ll be able to use your database to its utmost capacity by implementing advanced administrative tasks with ease.
Table of Contents (16 chapters)

Writing Stored Procedures

In Chapter 6, Optimizing Queries for Good Performance, we learned a lot about the optimizer, as well as the optimizations going on in the system. In this chapter, we will learn about stored procedures and how to use them efficiently and easily. You will learn about what a stored procedure is made up of, which languages are available, and how you can speed things up nicely. On top of that, you will be introduced to some of the more advanced features of PL/pgSQL, and you will learn how to write good server-side code.

The following topics will be covered in this chapter:

  • Understanding stored procedure languages
  • Exploring various stored procedure languages
  • Improving functions
  • Using functions for various purposes

By the end of this chapter, you will be able to write good, efficient stored procedures.