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25 January, 22:58

Making a change to the conceptual schema of a database but notaffecting the existing external schemas is an example of

? Physical dataindependence.

? Concurrency control.

? Logical dataindependence.

? Functional dependency

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  1. 26 January, 00:46
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    Answer: logical data independence

    Explanation:

    Using logical data independence we are able to make change to the conceptual schema but it does not make changes to the external schema. The external schema refers to the hiding the details of the database from the user.

    Logical data independence refers to the views by which we are able to see the data without getting the internal details of the database.
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