Well, where exactly are we supposed to code in SQL?

Answer 1

1. Install xampp.
2. Start apache and sql on xampp.
3. Then open PHPmyAdmin by going to browser and type : http://localhost
4. Select SQL there.
4. You can start coding.

Answer 2

There is currently no sql in code playground. Install some sql related dbms instead.

Answer 3

You can install MySQL or MariaDB, they're free.

Answer 4

I recommend installing SQL Server or PL/SQL for better understanding SQL.