Answered: CourseNo

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

Problem 1PE

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Question

Consider the relation R, which has attributes that hold schedules of courses and sections at a
university;
R = {CourseNo, SecNo, OfferingDept, CreditHours, CourseLevel, InstructorSSN, Semester, Year,
Days_Hours, RoomNo, NoOfStudents}.
Suppose that the following functional dependencies FDs hold on R:
{CourseNo} → {OfferingDept, CreditHours, CourseLevel}
{CourseNo, SecNo, Semester, Year} → {Days_Hours, RoomNo, NoOfStudents, InstructorSSN}
{RoomNo, Days_Hours, Semester, Year} → {InstructorSSN, CourseNo, SecNo}
Try to determine which sets of attributes form keys of R. How would you normalize this relation?

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