Part II: For the given ER diagram, construct therelational schema by specifying the resulting relations,their attributes, keys, and foreign keys.SSNESSNaddressDependent nameNBranch-nameCUSTOMERname1Cust-bankerEMPLOYEEEmployment-length1typeStart-datemanagerworkerBranch-cityPhononameBRANCHborrower1Works forNNassetsPaymenteLoan-branchNLOAN1Loan-paymentNPAYMENTPaymont dateLoan numberamountPayment amount

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Answered: Part II: For the given ER diagram,…

Part II: For the given ER diagram, construct the relational schema by specifying the resulting relations, their attributes, keys, and foreign keys.

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

Part II: For the given ER diagram, construct the
relational schema by specifying the resulting relations,
their attributes, keys, and foreign keys.
SSN
ESSN
address
Dependent name
N
Branch-name
CUSTOMER
name
1
Cust-banker
EMPLOYEE
Employment-length
1
type
Start-date
manager
worker
Branch-city
Phono
name
BRANCH
borrower
1
Works for
N
N
assets
Paymente
Loan-branch
N
LOAN
1
Loan-payment
N
PAYMENT
Paymont date
Loan number
amount
Payment amount

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