Show an E-R diagram illustrating the use of all three additional entity sets listed6. Design a generalization-specialization hierarchy for a motor-vehicle sales company. The company sellsmotorcycles, passenger cars, vans, and buses. Justify your placement of attributes at each level of thehierarchy7. In an operational environment, we have two sub environment and in each environment the user's need isas follows. Design a two ER diagram according to the needs of users. Design an ER diagram that unifiesthe two diagramsUser 1: article, journal and researcherUser 2: book, subject and author8. Suppose a parking spot in a college that students, Instructors and staffs can park their cars. Design a simpleER diagram for this environment9. Suppose three entities Instructor, Student and Course. Draw three different ER diagram to represent therelationships between these three entities.10. Consider the following entities:Job applicantCompanyInterviewd.a.b.с.Job offerDesign an ERD for this environment. Do we have a weak entity type?amazonPCacerF8F9F10PrtSclimpr.écSysRq/Syst.F11F1204AScr LkArrêtdéfBre

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Design a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attributes at each level of the hierarchy

Design a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attributes at each level of the hierarchy

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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