create an ER table
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
create an ER table

Transcribed Image Text:Manufacturer
A manufacturing company produces products. The following product information is stored:
product name, product ID and quantity on hand. These products are made up of many
components. Each component can be supplied by one or more suppliers. The following
component information is kept: component ID, name, description, suppliers who supply them,
and products in which they are used.
Assumptions
●
●
●
●
A supplier can exist without providing components.
A component does not have to be associated with a supplier.
A component does not have to be associated with a product. Not all components are
used in products.
A product cannot exist without components.
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