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Learn SQL

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

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

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 50,931 students in the Learn SQL course

Read reviews of their learning experiences

This was a good way to understand sql.

(5/5)
Katherine Sei profile image

Katherine Sei

United States

A really fun way to learn a particularly dense subject such as sql, I actually enjoyed myself doing this lecture

(5/5)
DanRoal  profile image

DanRoal

Mexico

It was good. Like 99% I did without solution checking.

(4/5)
A*** S******** profile image

A*** S********

Poland

Its so much fun learning SQL this way

(5/5)
Mohammedsami Sheth profile image

Mohammedsami Sheth

India

I really liked the course, I just would have like to have more iterations of similar exercises to aid memorization

(4/5)
Pablo Lichtig profile image

Pablo Lichtig

Boulder, CO

Great

(5/5)
heri susanto profile image

heri susanto

Indonesia

Remarkably even with great knowledge building one after the other

(5/5)
Daniel McCurley profile image

Daniel McCurley

United States

The flow of the material is actually pretty good!

(5/5)
Ameer  profile image

Ameer

Palestine

Excellent overview of databasics. Heh.

(5/5)
Bobby Faber profile image

Bobby Faber

United States

Showing 1-9 of 633

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Delve deeper

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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.