True/False
When selecting an identifier,one should choose a candidate key that will not change its value over the life of each instance of the entity type.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q70: Which of the following specifies that an
Q71: Which of the following specifies that each
Q72: Which of the following addresses the rules
Q73: On an entity relationship diagram,total specialization is
Q74: A _ is a relationship between instances
Q76: Domains are other business rules that protect
Q77: A primary key should be null.
Q78: All of the following are benefits of
Q79: Employee identification number,name,address,and skill are attributes.
Q80: Processes,rather than data,are the most complex aspects