Examples

The SQL Left Join or simply LEFT JOIN return all rows from the first table listed after the FROM clause or left of JOIN keyword ,no matter if they have matches in the right table of the JOIN keyword.

An SQL JOIN clause combines rows from two or more tables. It creates a set of rows in a temporary table.
A JOIN works on two or more tables if they have at least one common field and have a relationship between them.
JOIN keeps the base tables (structure and data) unchanged.

For students who need help understanding the three modes of persuasion, egos, logos and pathos. Once this website has been read, all confusion should be gone. Explanations as well as examples are given.