Play in the XAMMP tool (local server on your computer) queries based on

JOINS appearing in:

SQL Joins (w3schools.com)

SQL INNER JOIN Keyword (w3schools.com)

SQL LEFT JOIN Keyword (w3schools.com)

SQL RIGHT JOIN Keyword (w3schools.com)

Explain the differences between each of them

Transform each Join query into a query based on Table Cartesian Products.

Although the result is the same. What is the internal difference?