Answered: Q. 1 Consider a university database for…

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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Q. 1 Consider a university database for the scheduling of classrooms for final exams. This database could
be modeled as the single entity set exam, with attributes course-name, section-number, room-number, and
time. Alternatively, one or more additional entity sets could be defined, along with relationship sets to
replace some of the attributes of the exam entity set, as
1. course with attributes name, department, and c-number
2. section with attributes s-number and enrollment, and dependent as a weak entity set on course
3. room with attributes r-number, capacity, and building
Show an E-R diagram illustrating the use of all three additional entity sets Listed and also specify the primary keys all

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