Question: Specify the following queries in SQL on the database schema of Figure 2 . a ) [ 7 marks ] Get the names of the

Specify the following queries in SQL on the database schema of Figure 2.
a)[7 marks] Get the names of the courses that have two or more sections.
b)[7 marks] Get the names of the instructors who are teaching at least two different courses in the same semester of the same year.
c)[5 marks] Retrieve the names of students who took only one course in the Spring 2020 semester.

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