The relationship between Customer No and Friend No was set up using a Query by Example (QBE)
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Question:
The relationship between Customer No and Friend No was set up using a Query by Example (QBE) Graphics User Interface. To set up this relation, the QBE software required that a duplicate of the customer record was shown on the screen. This is shown as Customer Record_1 in the diagram below. You have been asked to make all the necessary changes to the company's database in order to accommodate the changes.
a) Does the existence of this relationship require that both Customer Record and its duplicate Customer Record_1 are permanently stored? Give a reason for your answer.
Related Book For
Smith and Roberson Business Law
ISBN: 978-0538473637
15th Edition
Authors: Richard A. Mann, Barry S. Roberts
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