1 1. Design ER Model for part of Internet sales system. The system provide thesales services for many customers to order many products from manycompanies. All Customers, products and companies information are stored inDB. Each customer can place one or more orders. The order can contain manyproducts that are supplied by one or more companies.2. Design ER Model for part of a Bank databases. The bank has multipleBranches, and each branch can have multiple accounts. Each customer can hasone account or more; or other services.3. Design ER Model for Hospital databases. Each Doctor is described by Doc ID,Phone, address, and specialization. Each doctor is allowed to work in only onedepartment. Each department is described by Dept no, Name, and issupervised by a doctor. Each patient is described by Card number, name,address, and phone. Each patient is assigned to one or more department. It'srequired to keep track each admission date. Each lab is described by LabNo,name. It's required to keep track any lab service that may be done to thepatient.4. Design ER Model for a library to manage data of books. The library containsbooks which are described by an ISBN, Title, Specialization. Each Book ispublished by one Publisher and written by many Authors. A publisher isdescribed by name, ID, Address, Fax and Phone number. An author isdescribed by name, ID, Address, Fax and Phone number. Each author writesmany books.

services for many customers to order many products from anies. All Customers, products and companies information are ach customer can place one or more orders. The order can conta ets that are supplied by one or more companies. n ER Model for part of a Bank databases. The bank has hes and each branch can have multinle accounts Fach custome

services for many customers to order many products from anies. All Customers, products and companies information are ach customer can place one or more orders. The order can conta ets that are supplied by one or more companies. n ER Model for part of a Bank databases. The bank has hes and each branch can have multinle accounts Fach custome

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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