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Learn SQL

Get dangerous with relational databases: query, filter, join, and aggregate data without hiding behind an ORM.

What you'll learn in this SQL course

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

1
Introduction
Learn about the basics of SQL and how it came to be
2
Tables
Create new tables and learn how to structure data efficiently
3
Constraints
Learn how to keep data accurate and up to date
4
CRUD
Create, read, update and delete information from a SQL database
5
Basic Queries
Practice additional clauses and features that SQL offers for more flexible querying
6
Structuring
Learn how to order and limit the data returned in large query sets
7
Aggregations
Learn how to run powerful calculations on entire datasets
8
Subqueries
Practice the advanced technique of nesting queries inside one another
9
Normalization
Learn how to normalize a database in order to keep it's data consistent and accurate
10
Joins
Practice joining multiple tables together in order to power real world usecases
11
Performance
Learn how to keep databases running fast and efficient in production

Join 55,182 students in the Learn SQL course

Read reviews of their learning experiences

This was a fun course. I learned a lot about sqlite3 and even got to review some advanced sql in the challenges.

(5/5)
Chris Wineinger profile image

Chris Wineinger

California, United States

Though a hectic but enjoyable

(5/5)
Muhammad Tahmidur RAhmann Khan profile image

Muhammad Tahmidur RAhmann Khan

Bangladesh

it's a very simple and clear course Thx :)

(5/5)
Othman Obayat profile image

Othman Obayat

Palestinian Territories

The interactive learning approach is just the best for me, I'm able to learn quickly, it helps me to learn hands on and also pushes me to practice what I'm learning even beyond the course material

(5/5)
Oluwatobi Oyejide profile image

Oluwatobi Oyejide

Nigeria

Love it

(5/5)
Venture  profile image

Venture

Thailand

This was the most plesent course i took on bootdev, i feel prepered for my Apschlüssprüfung Teil 2!

(5/5)
Ivan Mladenovic profile image

Ivan Mladenovic

Offenbach am Main

Great course, teaches you the basics of SQL and makes it easily understandable.

(5/5)
Aduneer  profile image

Aduneer

Germany

Fun way to get hands on experience with databases.

(4/5)
Omega Rae profile image

Omega Rae

United States

I did not have much trouble finishing it - it was a nice training for the brain

(5/5)
Nikola Konieczna - Lauer profile image

Nikola Konieczna - Lauer

Poland

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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.