Ever tried to learn SQL, the query language that lets you poke at the innards of databases? Most tutorials start by having you create your own database, fill it with nonsense, and then run queries ...

Like other Codecademy courses, you learn through interactive tutorials, building on previous exercises. You can also test your knowledge with quizzes or explore deeper with additional recommended ...

Follow this step-by-step guide to install PostgreSQL, load data, connect to a database, and execute SQL queries including table joins ...