Given the following EER diagram, write down the corresponding relations using the method taught in conceptual database design. Also use the template taught to represent the relational schema. Agreement Policy usedfor 0..* 1..1 policyNo {PK} agreeNo {PK} agreeDate sumAssured currency

Given the following EER diagram, write down the corresponding relations using the method taught in conceptual database design. Also use the template taught to represent the relational schema. Agreement Policy usedfor 0..* 1..1 policyNo {PK} agreeNo {PK} agreeDate sumAssured currency

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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Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

Given the following EER diagram, write down the corresponding relations using the method taught in
conceptual database design. Also use the template taught to represent the relational schema.
Agreement
Policy
usedfor
0..*
1.1
policyNo {PK}
agreeNo{PK}
agreeDate
sumAssured
currency
0. *
{Optional, Or}
insuredBy
issueAge
Permanent
Term
1. *
maxCoverAge
noOfYears
Insured Person
personID {PK}
{Mandatory, And}
sex
Life
Critical Illness
interestRate
benefit

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