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SQL Tutorial SQL is a standard language for storing, manipulating and retrieving data in databases.

HTML Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

Python Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over …

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.

We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over …

Learn JavaScript The Programming Language of the Web JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning …

Click on the "Try it Yourself" button to see how it works. We recommend reading this tutorial in the sequence listed in the left menu.

C Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.