Question
I have a schema I want these SQL queries 1. Find the top 4 instructors whose courses have the maximum enrollment in all of their
I have a schema
I want these SQL queries
1. Find the top 4 instructors whose courses have the maximum enrollment in all of their courses combined.
Output columns: InstructorName, TotalEnrollment
Sort by: TotalEnrollment in descending order
2. List all the courses offered by the departments Comp. Sci. and History. Output should not contain any duplicates.
Output columns: DepartmentName, CourseID
Sort by: CourseID in ascending order.
3. List all the courses that have prerequisites offered by a different department.
Output columns: Course_id, Course_department, Prereq_id, Prereq_department
Sort by: Course_id in ascending order
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started