Question: 10. What is a derived attribute? Give an example. What are the advantages or disadvan- tages of storing or not storing a derived attribute? 11.

10. What is a derived attribute? Give an example. What are the advantages or disadvan- tages of storing or not storing a derived attribute?

11. How is a relationship between entities indicated in an ERD? Give an example using the Crows Foot notation.

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