Question

what is physically data independence​

Answer 1

Physical data independence is the ability to modify the physical schema without causing application programs to be rewritten. ... It means we change the physical storage/level without affecting the conceptual or external view of the data. The new changes are absorbed by mapping techniques.

Answer 2

Explanation:

⏩ Physical data independence is the ability to modify the physical schema without causing application programs to be rewritten. ... It means we change the physical storage/level without affecting the conceptual or external view of the data. The new changes are absorbed by mapping techniques. ⏪

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