Define the term unique key and give an example, Computer Engineering

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Define the term unique key and give an example

Problem

1. Under what circumstances can a relation have duplicate rows?

2. Define the term unique key and give an example.

3. Define the term nonunique key and give an example.

4. Give an example of a relation with a unique composite key.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.

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Computer Engineering: Define the term unique key and give an example

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Computer Engineering: Define the term unique key and give an example

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