Question

what is logical data independence and why it is independent?
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Answer 1

Explanation:

Logical data independence is the ability to modify the logical schema without causing application program to be rewritten. Modifications at the logical level are necessary whenever the logical structure of the database is altered (for example, when money-market accounts are added to banking system).

Logical data is independence occurs at the user interface level.

Answer 2

Answer:

logical data independence is ability to modify the schema without causing appliciation program to be rewrriten .

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