You are the CTO of a startup based out of Arlington, VA that needs to setup a database to keep track of the details of the customers: last name, first name, customer ID, street address, customer star rating (a rating on a 1 – 5 scale, with 5 being best, representing the type of customer) and phone number. It also needs to keep track of similar information for suppliers as well (although instead of supplier first and last name, there will just be a supplier company name). The database should maintain the data on products that are offered. Information about which product is offered by which supplier should also be maintained. Finally, which customers have purchased which products should also be tracked (note that we are only interested in which customers bought which product, but not concerned about the date or how many were bought). 1.1 Business Rules Assumptions for the business model are as follows: Only customers that have purchased one or more products will exist in the database. Only products that the company sells will be stored in the database. Products will have been purchased by one or more of the customers. Suppliers may be potential suppliers (i.e., they may not have necessarily supplied any products yet). If a supplier provides a product, it is the exclusive supplier of that product to your company. Note that you will need to determine which data should reside in which tables. Additionally, make sure you are marking the relationships correctly. Create an ERD

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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You are the CTO of a startup based out of Arlington, VA that needs to setup a database to keep track of the details of the customers: last name, first name, customer ID, street address, customer star rating (a rating on a 1 – 5 scale, with 5 being best, representing the type of customer) and phone number. It also needs to keep track of similar information for suppliers as well (although instead of supplier first and last name, there will just be a supplier company name). The database should maintain the data on products that are offered. Information about which product is offered by which supplier should also be maintained. Finally, which customers have purchased which products should also be tracked (note that we are only interested in which customers bought which product, but not concerned about the date or how many were bought).

1.1 Business Rules

Assumptions for the business model are as follows:

Only customers that have purchased one or more products will exist in the database.
Only products that the company sells will be stored in the database. Products will have been purchased by one or more of the customers.
Suppliers may be potential suppliers (i.e., they may not have necessarily supplied any products yet). If a supplier provides a product, it is the exclusive supplier of that product to your company.

Note that you will need to determine which data should reside in which tables. Additionally, make sure you are marking the relationships correctly.

Create an ERD

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