GATE CSE 2007
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MCQ (Single Correct Answer)
GATE CSE 2007
Information about a collection of students is given by the relation studInfo(studId, name, sex). The relation enroll(studId, courseId) gives which student has enrolled for (or taken) what course(s). Assume that every course is taken by at least one male and at least one female student. What does the following relational algebra expression represent?
A) Courses in which all the female students are enrolled.
B) Courses in which a proper subset of female students are enrolled.
C) Courses in which only male students are enrolled.
D) None of the above.