Question: Computer Science - Database Systems Given the following relation schemes: Teacher = [CourseN, Quarter,TeacherName] Course = [CourseN,CourseName, Nunit) LocationNTime = [CourseN, Quarter , DayTime, RoomN]/

Computer Science - Database Systems

Given the following relation schemes:

Teacher = [CourseN, Quarter,TeacherName]

Course = [CourseN,CourseName, Nunit)

LocationNTime = [CourseN, Quarter , DayTime, RoomN]/ Examples of DayTime: M2:00AM,

W4:50PM, and T8:00PM. Note that DayTime is represented as a string.

Student = [studentName, CourseN, Quarter]

QUESTION:

List the CourseN and Quarter of every course taught by two different instructors in the same quarter ordered by the CourseN in descending order.

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