2. Use RELATIONAL ALGEBRA to write the following queries: a) Find names and surnames of professors, who teach a course in "Biology" programme b) Find the student IDs and names of students who have not taken any exam (from any course) c) Find student IDs of students who have passed every exam from "Data Science" programme d) Find the course IDs and names of courses that have been passed by at least two different students (If a course was taken it means that a student wrote an exam on that course)

2. Use RELATIONAL ALGEBRA to write the following queries: a) Find names and surnames of professors, who teach a course in "Biology" programme b) Find the student IDs and names of students who have not taken any exam (from any course) c) Find student IDs of students who have passed every exam from "Data Science" programme d) Find the course IDs and names of courses that have been passed by at least two different students (If a course was taken it means that a student wrote an exam on that course)

CMPTR

3rd Edition

ISBN:9781337681872

Author:PINARD

Publisher:PINARD

Chapter17: Creating A Database

Section: Chapter Questions

Problem 4QY

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