(Answered) Discriminator in a supertype-subtype relationship

Engineering

Problem: Java started this object-oriented Hierarchical relationship business. In a database world what are the supertype/subtype relationships, and why are they used?

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Question: What is the discriminator in a supertype/subtype relationship, and how is it used? we need explanations and examples. Please show steps how you get an answer and please be clear in your explanation.

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Computer Engineering, Engineering

Category:- Computer Engineering
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