Question

1 what is the difference between physical and logical data indepence?

Answer 1

Logical Data Independence is used to change the conceptual scheme without changing the following things : External views.

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Difference between Physical and Logical Data Independence :

Physical Data Independence Logical Data Independence

It is easy to retrieve. It is difficult to retrieve because the data is mainly dependent on the logical structure of data

Answer 2

QUESTION

What is the difference between physical and logical data independence ?

ANSWER

Physical Data Independence :

It is easy to retrieve

Logical Data Independence :

It is difficult to retrieve because the data is mainly dependent on the logical structure of data.