author publisher патe name address address URL phone URL customer email written_by патe published_by address phone book | питber ISBN title shopping_basket basket_of Jear contains basket_id price пиmber warehouse code stocks address phone Figure 6.30 E-R diagram for modeling an online bookstore.
author publisher патe name address address URL phone URL customer email written_by патe published_by address phone book | питber ISBN title shopping_basket basket_of Jear contains basket_id price пиmber warehouse code stocks address phone Figure 6.30 E-R diagram for modeling an online bookstore.
Fundamentals of Information Systems
8th Edition
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter3: Database Systems And Applications
Section: Chapter Questions
Problem 20SAT
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Question
Consider the E-R diagram in Figure 6.30, which models an online bookstore.
Suppose the bookstore adds Blu-ray discs and downloadable video to its
collection. The same item may be present in one or both formats, with differing prices. Draw the part of the E-R diagram that models this addition,
showing just the parts related to video.
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