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Which keyword is used to rename the resulting attribute after the application of the aggregation function?

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Which keyword is used to rename the resulting attribute after the application of the aggregation function?

(a) rename

(b) as

(c) replace

(d) to

The question was posed to me in an interview for internship.

Origin of the question is Aggregate Functions topic in chapter Introduction to Relational Model and Sql of RDBMS

1 Answer

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Best answer
Correct choice is (b) as

For explanation I would say: The “as” keyword is used to rename the resulting attribute after the aggregation function has been applied. Just like any other renaming operation, the as keyword simplifies the name of the relation.

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