When or why would you use a right outer join instead of left?

Question

Wikipedia states:

\"In practice, explicit right outer joins are rarely used, since they can always be replaced with left outer joins and provide no additional functi

Answer 1

The only time I would think of a right outer join is if I were fixing a full join, and it just so happened that I needed the result to contain all records from the table on the right. Even as lazy as I am, though, I would probably get so annoyed that I would rearrange it to use a left join.

This example from Wikipedia shows what I mean:

SELECT *  
FROM   employee 
   FULL OUTER JOIN department 
      ON employee.DepartmentID = department.DepartmentID

If you just replace the word FULL with RIGHT you have a new query, without having to swap the order of the ON clause.