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GATE | GATE-CS-2004 | Question 51
Consider the relation Student (name, sex, marks), where the primary key is shown underlined, pertaining to students in a class that has at least one boy and one girl. What does the following relational algebra expression produce? (Note: r is the rename operator).
The condition in join is "(sex = female ^ x = male ^ marks ≤ m)"
![GATECS2004Q51]("http://www.geeksforgeeks.org/wp-content/uploads/gq/2014/09/GATECS2004Q51.png")
The condition in join is "(sex = female ^ x = male ^ marks ≤ m)"(A)
names of girl students with the highest marks
(B)
names of girl students with more marks than some boy student
(C)
names of girl students with marks not less than some boy students4)
(D)
names of girl students with more marks than all the boy students
Answer
Please comment below if you find anything wrong in the above post
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