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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.

Options

  1. Sub key
  2. Candidate key
  3. Super key
  4. Foreign key
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Solution

The correct answer is Super key.

Here's why:

  1. A super key is a set of one or more keys that can be used to identify a record uniquely in a relation.

  2. In other words, a super key is a set of attributes within a table that can uniquely identify each record within a table.

  3. Therefore, a super key is a superset of all keys in a relation.

  4. The other options, Sub key, Candidate key, and Foreign key, do not fit the definition of a superset of all keys in a relation.

So, the correct answer is Super key.

This problem has been solved

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