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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 52,744 students in the Learn SQL course

Read reviews of their learning experiences

Really if anyone's looking to learn SQL via this course, do NOT speed through the later units from unit 7 and above and also unit 4, god did it cost me a whole recap xd. Gonna straighten my back now and then proceed to redo the entire course to really set it in my memory.

(5/5)
Saransh Bhatnagar profile image

Saransh Bhatnagar

India

extremly hands enjoyed a lot and learn a lot from this course now next i will build the blog gator

(5/5)
Pratik  profile image

Pratik

Nepal

Great class.

(5/5)
Brian Denmark profile image

Brian Denmark

United States

every concept explained in the simple and easy to understand form

(5/5)
Jhangir Ahmad profile image

Jhangir Ahmad

pakistan

Its great!

(5/5)
Igor Halink profile image

Igor Halink

Netherlands

I really, really enjoyed learning SQL. Very well done lessons.

(5/5)
Samuel Couch profile image

Samuel Couch

Grand Rapids, Michigan

I have found the best SQL lesson so far. I prefer text based learning like this to video based ones.

(5/5)
Muyiwa J. Obadara profile image

Muyiwa J. Obadara

Remote

Learning the basics of SQL was extremely easy and this course is very well structured. Once you get into dealing with multiple tables and joining, it gets a lot more complex, so be ready.

(5/5)
Vexten  profile image

Vexten

Grovetown, USA

Pretty helpful course for learning SQL basics

(5/5)
Richard Zili profile image

Richard Zili

United States

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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.