A super key for an entity consists of:
2008
A super key for an entity consists of:
Answer: D. one or more attributes — A super key for an entity consists of a set of one or more attributes that uniquely identify each tuple in the relation. It is a superset of a candidate key,…
- A.
one attribute only
- B.
at least two attributes
- C.
at most two attributes
- D.
one or more attributes
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Correct answer: D
A super key for an entity consists of a set of one or more attributes that uniquely identify each tuple in the relation. It is a superset of a candidate key, meaning it may contain additional attributes beyond those required for unique identification.
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