using the above schema solve the following queries
Find the IDs of all students who were taught by an instructor named Einstein; make sure there are no duplicates in the result.
Find all instructors earning the highest salary (there may be more than one with the same salary).
Find the enrollment of each section that was offered in Fall 2009.
Find the maximum enrollment, across all sections, in Fall 2009.
Create a new course “CS-001”, titled “Weekly Seminar”, with 0 credits.