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PostgreSQL is an advanced relational database system.

PostrgeSQL supports both relational (SQL) and non-relational (JSON) queries.

PostgreSQL is free and open-source.


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

Sort the table by year:

SELECT * FROM cars
ORDER BY year;


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