Select the correct answer______________ is the superset of all keys in a relation.OptionsSub keyCandidate keySuper keyForeign key
Question
Select the correct answer______________ is the superset of all keys in a relation.OptionsSub keyCandidate keySuper keyForeign key
Solution
The correct answer is Super key.
A super key is a set of one or more keys that can be used to identify a record uniquely in a relation. In other words, a super key is a set of attributes within a table whose values can be used to uniquely identify a tuple. An entity set may have one or more super keys.
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answer______________ is the superset of all keys in a relation.
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