Map the relational schema of Figure 6.14 into an ER schema. This is part of a process knownas reverse engineering, where a conceptual schema is created for an existing implementeddatabase. State any assumptions you make.ВOOKBook id TitlePublisher_nameBOOK AUTHORSBook id Author_namePUBLISHERNameAddressPhoneвоOK COPIESBook id Branch_id No of_copiesBOOK LOANSBook_id Branch_idCard noDate_out Due_dateLIBRARY_BRANCHBranch_id Branch_name AddressBORROWERCard no NameFigure 6.14A relational databaseAddressPhoneschema for a LIBRARYdatabase.

Map the relational schema of Figure 6.14 into an ER schema. This is part of a process known as reverse engineering, where a conceptual schema is created for an existing implemented database. State any assumptions you make.

Map the relational schema of Figure 6.14 into an ER schema. This is part of a process known as reverse engineering, where a conceptual schema is created for an existing implemented database. State any assumptions you make.

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

Map the relational schema of Figure 6.14 into an ER schema. This is part of a process known
as reverse engineering, where a conceptual schema is created for an existing implemented
database. State any assumptions you make.
ВOOK
Book id Title
Publisher_name
BOOK AUTHORS
Book id Author_name
PUBLISHER
Name
Address
Phone
воOK COPIES
Book id Branch_id No of_copies
BOOK LOANS
Book_id Branch_id
Card no
Date_out Due_date
LIBRARY_BRANCH
Branch_id Branch_name Address
BORROWER
Card no Name
Figure 6.14
A relational database
Address
Phone
schema for a LIBRARY
database.

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