My list of SQL resources is still quite short so if you have additions, please comment below or contact me! There are separate overviews for Data Science, Machine Learning, & Statistics resources and for R resources and Python resources.

LAST UPDATED: 11-11-2018

Cheat sheets:

• SQL Basics cheat sheet
• MySQL cheat sheet by Dave Child
• SQL cheat sheet by sql-tutorial.net
• SQL in one page
• SQL for dummies cheat sheet
• Visual SQL joins
• MySQL cheat sheet
• Quick SQL cheat sheet by Wong Keng Onn
• SQL cheat sheet by Websetup

Courses:

• Sololearn SQL Fundamentals
• w3schools SQL Tutorial

Books:

• SQL Essentials (McIlroy, 2016)