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Suppose you are given a relation grade_points(grade, points) that provides a conversion from letter grades in the takes relation to numeric scores; for example, an “A” grade could be specified to correspond to 4 points, an “A−” to 3.7 points, a “B+” to 3.3 points, a “B” to 3 points, and so on. The grade points earned by a student for a course offering (section) is defined as the number of credits for the course multiplied by the numeric points for the grade that the student received.Given the preceding relation, and our university schema, write each of thefollowing queries in SQL. You may assume for simplicity that no takes tuple has the null value for grade. Find the ID and the grade-point average of each student.

Suppose you are given a relation grade_points(grade, points) that provides a conversion from letter grades in the takes relation to numeric scores; for example, an “A” grade could be specified to correspond to 4 points, an “A−” to 3.7 points, a “B+” to 3.3 points, a “B” to 3 points, and so on. The grade points earned by a student for a course offering (section) is defined as the number of credits for the course multiplied by the numeric points for the grade that the student received.Given the preceding relation, and our university schema, write each of thefollowing queries in SQL. You may assume for simplicity that no takes tuple has the null value for grade. Find the ID and the grade-point average of each student.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Suppose you are given a relation grade_points(grade, points) that provides a conversion from letter grades in the takes relation to numeric scores; for example, an “A” grade could be specified to correspond to 4 points, an “A−” to 3.7 points, a “B+” to 3.3 points, a “B” to 3 points, and so on. The grade points earned by a student for a course offering (section) is defined as the number of credits for the course multiplied by the numeric points for the grade that the student received.
Given the preceding relation, and our university schema, write each of the
following queries in SQL. You may assume for simplicity that no takes tuple has the null value for grade. Find the ID and the grade-point average of each student.

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