Learn SQL
Learn the fundamentals of Structured Query Language (SQL), the most popular way to interact with database systems like MySQL, PostgreSQL, and SQLite.
Author
Lane Wagner
Lane is a back-end engineer and the lead instructor of Boot.dev. He has taught over one million students worldwide, on Boot.dev, FreeCodeCamp, YouTube and the Backend Banter podcast. Lane worked as a backend engineer writing Go, Python and TypeScript, then moved into engineering management and a couple of years later left to build Boot.dev full-time.
Theo
Maintainer
Allan
Maintainer
Matt
Maintainer
Hunter
Maintainer
30 Hours
of content
126 Addicting
lessons
Earn a certificate
of completion
Learn online
at your pace
What will you learn?
Learn all the basics of Structured Query Language in this comprehensive SQL course. You'll build out real database tables and practice querying them in flexible ways right in the browser. Not only will you understand how to use SQL, but you'll also learn in what situations you should use it. We will cover architectural design patterns and how to use SQL in a production environment.
Chapter List
Join 3,056 students in the Learn SQL course
Read reviews of their learning experiences
This lesson exceeded my expectations. I went in thinking I knew the basics, but the deeper dives into trade-offs and edge cases were exactly what I needed. The instructor didn’t just show ‘happy path’ solutions: they demonstrated how to think about failure modes, performance bottlenecks, and future extensibility. The capstone project, while optional, gave me the perfect sandbox to experiment and get feedback.
So Vesali
Kansas City, KS
Loved the pacing and depth.
Math
Luzern, Switzerland
Helpful examples and explanations.
UFifty50
Land of the Pog
Great lesson, super clear.
Kevin Hernández Rostrán
San José, Costa Rica
Challenging but rewarding.
Lekan Adeyeri
boston, ma
Short but impactful—taught me exactly what I needed.
Karida Chen
Toronto, Canada
Helpful examples and explanations.
Fabio Hirt
Rombach, Switzerland
Helpful examples and explanations.
Aleksandar Popovic
18229 Mozgovo, Aleksinac, Serbia
I appreciated how the instructor broke down the core concepts into digestible steps. The examples were practical and mirrored what I encounter in my day-to-day work. In particular, the section on error handling and observability tied everything together. If I had a minor nitpick, it would be that the pacing sped up in the last module, but the accompanying notes and code samples made it easy to revisit and cement the ideas.
Aamer Baig
Lahore, Pakistan
Showing 1-9 of 10
Mediocrity doesn't cut it anymore
The only way to become a great developer is to write a lot of code
Avoid tutorial hell
by writing a ton of code
Stay motivated with
a game-like curriculum
Build portfolio projects
to prove your skills
Delve deeper
into foundational concepts
Learn flexibly online
without interrupting your life
For 1% the price of college
to minimize your financial risk
Frequently asked Questions
Got questions? We've got answers
Yes! It's free to create an account and start learning. You'll get all the immersive and interactive features for free for a few chapters. After that, if you still haven't paid for a membership, you'll be in read-only (content only) mode.
Platform
Languages
Subjects
Support
Pricing
Community
