Is RIGHT JOIN Ever Required?

Question

Do any queries exist that require RIGHT JOIN, or can they always be re-written with LEFT JOIN?

And more specifically, how do you re-write this one without the right

Answer 1

There are many elements of many programming languages which are not strictly required to achieve the correct results but which permit one a) to express intent more clearly b) to boost performance. Examples include numbers, characters, loops, switches, classes, joins, types, filters, and thousands more.