What is an exclusive subtype relationship

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1. Define the terms supertype, subtype, and discriminator.

2. What is an exclusive subtype relationship? Give an example other than one shown in this book. Draw an IE Crow's Foot E-R diagram for your example.

3. What is an inclusive subtype relationship? Give an example other than one shown in this chapter. Draw an IE Crow's Foot E-R diagram for your example.

4. Give an example of a recursive relationship other than the one shown in this chapter. Draw an IE Crow's Foot E-R diagram for your example.

Reference no: EM131259360

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