Consider the relation R, which has attributes that hold schedules of courses and sections at a university; R = {CourseNo, SecNo, OfferingDept, Credit-Hours, CourseLevel, InstructorSSN, Semester, Year, Days_Hours, RoomNo, NoOfStudents}. Suppose that the following functional dependencies hold on R:
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{CourseNo} → {OfferingDept, CreditHours, CourseLevel}
{CourseNo, SecNo, Semester, Year} → {Days_Hours, RoomNo, NoOfStudents, InstructorSSN}
{RoomNo, Days_Hours, Semester, Year} → [Instructorssn, CourseNo, SecNo}
Try to determine which sets of attributes form keys of R. How would you normalize this relation?
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Posted 17 Jan 2018 09:01 PM
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