SQL Select Query Question

1. Use a Self Join and display the last name of each Instructor and the last name of their Department Chair.

(Code this to avoid displaying rows where the Instructor name displayed is the same as the Dept Chair last name.)

2.

Let's assume that the Department name in the Departments Table is also a declared Major or Minor title.

Using a Cross join and using only the Departments table, create a list of all possible Majors with Minors using the DepartmentName for this data.

Label Column 1 as 'Major' and Column 2 as 'Minor'

Do not include same/same. i.e. Music/Music.