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Which of the following is true about identifiers of entities? Question 6 4 options: Identifiers must be unique. Identifiers are not normally used in a
Which of the following is true about identifiers of entities?
Question options:
Identifiers must be unique.
Identifiers are not normally used in a naming role.
The value of an identifier may identify a set of entity instances.
Identifiers may not be more than two attributes
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