What are the differences between the logical data independence and physical data independence?
Logical Data Independence V/S Physical Data Independence
Logical Data Independence :-
Logical data independence is the capacity to change the conceptual schema without having to change application programs. We may change the conceptual schema to expand the database or to reduce the database. Logical data independence provide that new data items can be added or overall logical structure can be expanded without rewriting existing application program.
Physical Data Independence :-
It is the capacity to change the internal schema without having to change conceptual or external schema. Changes to the internal schema may be needed because some physical
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