Learn & Practice SQL
with the most comprehensive set of 64 hands-on, online SQL courses for teams and individuals
Start nowSELECT *
FROM trip
WHERE city_id IN (
SELECT id
FROM city
WHERE area > 100
);
Four different SQL dialects
Follow dedicated paths for Standard SQL syntax, T-SQL for SQL Server, PostgreSQL or MySQL.
SQL Certificates
After successfully completing each course, you will receive a certificate that you can publish on your LinkedIn profile.
Friendly support
Don't worry if you get stuck. We'll always be there to help you with any doubts or issues you may face when you're learning.
100% web-based experience
To enroll in our courses, you'll only need a contemporary web browser and a positive attitude.
Real database environment
All the challenges and exercises you'll complete are based on real-world applications. No fluff, just things you need.
SELECT *
FROM trip
WHERE city_id IN (
SELECT id
FROM city
WHERE area > 100
);
SELECT *
FROM trip
WHERE city_id IN (
SELECT id
FROM city
WHERE area > 100
);
SELECT *
FROM trip
WHERE city_id IN (
SELECT id
FROM city
WHERE area > 100
);
Track
SQL from A to Z
Track
Advanced SQL in PostgreSQL
Track
SQL from A to Z in MS SQL Server
Pick the right SQL learning path for yourself
Whether you want to learn SQL to explore and analyze your data to get actionable insights, or want to learn how to store, manage, and optimize data in a relational database, we have everything you need.
Enter Course ExplorerMost popular Tracks and Courses
Track
SQL from A to Z
Become a SQL master β even if youβve never coded before. Learn all the necessary tools to freely and efficiently work with any type of data. Start from the basics, then discover advanced SQL functions and features.
Course
SQL Basics
Start here if youβre new to SQL. Learn the basics of SQL, retrieve data from an SQL database and build simple reports.
Track
SQL Practice
Review and consolidate your SQL skills with tons of interactive exercises! In this learning path, youβll practice SQL JOINs, aggregation with GROUP BY and HAVING, and subqueries (including correlated subqueries).
Track
SQL from A to Z in MS SQL Server
Become a SQL master β even if youβve never coded before. Learn all the necessary tools to freely and efficiently work with any type of data. Start from the basics, then discover advanced SQL functions and features.
Course
Window Functions
Learn how to use analytic SQL functions to deeply understand data.
Course
Creating Basic SQL Reports
Teach yourself how to build basic SQL reports to track and analyze the performance of your metrics.
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SQL Library
Dig into the vast amount of expert tutorials, blogs, guides, cheat sheets, and more. Learn everything you need to know about SQL and its dialects in one place.
Articles Cookbook
How Do You Write a SELECT Statement in SQL?
How to Add Days to a Date in MySQL
