Use SQL to create the following database; to including referential integrity. You may NOT use the GUI for this part of the exercise.
COURSE ( CourseNu, CourseName, CreditHrs)
SECTION ( CallNu, Semester, Year, BuildName, RoomNu, EnrollmentMax)
STUDENT ( SID, SName, SAdd, STelephone)
INSTRUCTOR ( IID, IName, IRoomNu)
Courses have sections; each section is associated with one course. Students enroll in sections, but each section may only have that student enrolled once. Instructors teach sections. There is NO team teaching.