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) that 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.
Please comment below if you find anything wrong in the above post
Feeling lost in the world of random DSA topics, wasting time without progress? It's time for a change! Join our DSA course, where we'll guide you on an exciting journey to master DSA efficiently and on schedule.
Ready to dive in? Explore our Free Demo Content and join our DSA course, trusted by over 100,000 geeks!