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UGC-NET | UGC NET CS 2015 Jun – III | Question 8

  • Last Updated : 19 Jun, 2018

The STUDENT information in a university stored in the relation STUDENT (Name, SEX, Marks, DEPT_Name)
Consider the following SQL Query SELECT DEPT_Name from STUDENT where SEX = ‘M’ group by DEPT_Name having avg (Marks)>SELECT avg (Marks) from STUDENT. It Returns the Name of the Department for which:
(A) The Average marks of Male students is more than the average marks of students in the same Department
(B) The average marks of male students is more than the average marks of students in the University
(C) The average marks of male students is more than the average marks of male students in the University
(D) The average marks of students is more than the average marks of male students in the University


Answer: (B)

Explanation: The SQL query:
SELECT DEPT_Name from STUDENT where SEX = ‘M’ group by DEPT_Name having avg (Marks)>SELECT avg (Marks) from STUDENT.
will return The average marks of male students is more than the average marks of students in the University.
So, option (B) is correct.

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