Who this book is for

You are expected to have some exposure to databases. Basic familiarity with database objects such as tables and views is expected. You will find this book really useful if you have no or a little exposure to PostgreSQL. If you have been working with PostgreSQL for a few years, you should still find a few useful commands that you were not aware of or a couple of optimization approaches you have not tried. You will also gain more insight into how the database works.