Question

Which of the following is true about data independence

Answer 1

whr are the options. ........

Answer 2

Answer:

Data independence allows you to change the schema at one level without changing the schema at another level.

Explanation:

Data independence is a kind of data transparency that is important for a centralized DBMS. This refers to the tolerance of the user application to changes made to the definition and organization of the data. Ideally, application programs should not be exposed to the details of data representation and storage.

Data independence and operational independence combine to form the function of  data abstraction.

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