Intro to SQL | Practical Programming

Get started in SQL in this free online class! SQL (Structured Query Language) is a programming language designed for managing data in a relational database. Learn what SQL is, why it's so popular, and why you should learn it. You’ll learn about which industries use it, and why SQL is so widely used among data scientists and data engineers. You'll also see examples of the types of things you can do with SQL, learn about databases and why we need them, and more!

Learn with Hands-on Classes

If you’re ready to launch your career in data science or SQL, check out these classes:

What You’ll Learn

What is SQL & why it’s popular
Why SQL is a good programming language to learn
How SQL is used across industries
Types of things you can do with SQL
Overview of databases & why we need them

Why Learn at Practical?

Highly Reviewed by Our Alumni

From our hands-on training style to world-class instructors and custom-crafted curriculum, we deliver results our alumni are proud of.

Art from programming with us answered all questions. Covered the most common operations for analyzing and visualizing the fluctuations of the stock market.

Shoshana B.

This class was great. The right blend of teaching and practicing what we learn. Thalo was a great instructor that balanced giving us the knowledge and letting us think our way through the problems. Also, he was there to rescue us when we got in over our head.

David Knutson

I took this class online with Thalo. He is an excellent teacher and very patient and thorough. I learned more than I could have hoped and also saw a great example of what online teaching can be Highly recommend.

Jessica Joiner

Excellent for those who want to get into Python quickly.

Joseph Wargel

I really liked the teachers, they are very nice and patient with their students. It was difficult but you do get out what you put in, so do be prepare to work! Great price and and great experience. I would definitely recommend.

Linda