Operating-Systems
October 4, 2023SQL
October 4, 2023SQL
Question 15 |
Consider the set of relations shown below and the SQL query that follows.
Students: (Roll_number, Name, Date_of_birth) Courses: (Course number, Course_name, Instructor) Grades: (Roll_number, Course_number, Grade) select distinct Name from Students, Courses, Grades where Students. Roll_number = Grades.Roll_number and Courses.Instructor = Korth and Courses.Course_number = Grades.Course_number and Grades.grade = A
Which of the following sets is computed by the above query?
Names of students who have got an A grade in all courses taught by Korth
| |
Names of students who have got an A grade in all courses | |
Names of students who have got an A grade in at least one of the courses taught by Korth
| |
in none of the above |
Question 15 Explanation:
The query results a names of students who got an A grade in at least one of the courses taught by korth.
Correct Answer: C
Question 15 Explanation:
The query results a names of students who got an A grade in at least one of the courses taught by korth.
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