A explain why primary keys may never be null but alternate, Ask an Expert

Engineering

a. Explain why primary keys may never be null, but alternate keys can be null.

b. List five generic data types.

c. Describe three ways that a default value can be assigned.

d. What is a domain constraint? Give an example.

e. What is a range constraint? Give an example.

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M91974947

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