m university database , Write the following queries in SQL Find the titles of courses in the Comp. Sci. department that have 3 credits Find all instructors earning the highest salary (there may be more than one with the same salary) Find all courses that have never been offered (i.e., do not occur in the section relation). b) given the following tables( instructor, teaches) what is the output of the following query select i.name from instructor as i, teaches as t where i.ID=t.ID and semester=’ Fall’ and year=2017;

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