We also have an interactive online SQL course at CodeHS (completely client side as well). You can check it out at https://codehs.com/sql https://codehs.com/sql

We also have an interactive online SQL course at CodeHS (completely client side as well). You can check it out at https://codehs.com/sql https://codehs.com/sql or try out the first hour free at https://codehs.com/hoc https://codehs.com/hoc