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For a library, the entity type HOLDING has 4 subtypes: BOOK, AUDIO BOOK, DVD, and SOFTWARE. Draw a separate EER diagram segment for each of the following situations (put each diagram under the letter/instructions you are diagraming for):

1) At a given time, a holding must be exactly one of these subtypes.

2) A holding may or may not be one of these subtypes. However, a holding that is one of these subtypes cannot at the same time be one of the other subtypes.

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M93101374

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