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Learn SQL

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

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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
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Join 48,737 students in the Learn SQL course

Read reviews of their learning experiences

neat

(5/5)
Seth Dufrene profile image

Seth Dufrene

United States

This was such an awesome course. The interactivity of the lessons makes concepts really easy to grasp

(5/5)
Makumi J profile image

Makumi J

Nairobi, Kenya

All the basics of SQL covered and it's done very good, all the examples and exercises are perfect

(5/5)
vladislav profile image

vladislav

Almaty, Kazakhstan

Great content as always. Great for refreshing my memory, and also taught me a few new things.

(5/5)
Den Hafiz profile image

Den Hafiz

Kuala Lumpur, Malaysia

great

(5/5)
Maciej Madziński profile image

Maciej Madziński

Poland

Pretty good. Hoping they make another one.

(5/5)
Dean Hasto profile image

Dean Hasto

United States

good intro course, not exhaustive but gives an intro into every concept you'll come across, so helpful

(4/5)
deepak yanamala profile image

deepak yanamala

India

It was a great experience...

(5/5)
Bruno André profile image

Bruno André

Angola

Learnt more than just the syntax, got an intuitive idea about SQL!

(5/5)
Yashaswini C Rao profile image

Yashaswini C Rao

India

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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.

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