Practice Setup

We will run SQL in the browser, no installation needed.

Web SQL practice

Open the site below. Put table/data setup on the right, write SQL on the left, and run it.

https://www.db-fiddle.com/

• Note: In this course, we use PostgreSQL 18.
  • Most databases use similar SQL syntax, but there are subtle differences. So we recommend following this course with PostgreSQL 18 selected in db-fiddle.

Now let’s start with the basics of databases.