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A data type that creates unique numbers for key columns in Microsoft Access is:

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A data type that creates unique numbers for key columns in Microsoft Access is:

(a) Autonumber

(b) Boolean

(c) Sequential key

(d) Sequential number

This question was addressed to me during an interview.

My question is from Atomic Domains topic in portion Database Systems Design and Implementation of Database Management

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Correct option is (a) Autonumber

To explain: This can be taken as a primary key.

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