What is an exclusive subtype relationship

Reference no: EM131259360

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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