PostgreSQL is an advanced, free, and open-source relational database system.
PostgreSQL supports both relational (SQL) and non-relational (JSON) queries.
PostgreSQL is free and open-source.
Become PostgreSQL Certified
Learning by Doing
In this tutorial you get a step by step guide on how to install and create a PostgreSQL database. You will learn how to create a project where you can create, read, update, and delete data.
You will learn how to query, filter, and sort data from the database.
Examples in Each Chapter
In the tutorial we will use examples to show what SQL statements returns from the database:
Example
SELECT * FROM cars
ORDER BY year;
Learning by Exercises
Many chapters in this tutorial end with an exercise where you can check your level of knowledge.
PostgreSQL Quiz
Learn by taking a quiz! The quiz will give you a signal of how much you know about PostgreSQL.