Answer Happy

Which of the following describes logical data independence and
physical data independence? Tick all that apply.
Choice 1 of 4:Logical data independence refers to the
immutability of the application programs and users to changes in
the database such as adding new columns, tables, merging or
splitting existing tables.
Choice 2 of 4:Logical data independence refers to the
immutability of the conceptual schemas with changes to other
schemas.
Choice 3 of 4:Physical data independence refers to the
immutability of the application programs and users to the changes
in the storage device, disc access methods, indexing, or location
of the database.
Choice 4 of 4:Physical data independence refers to the
immutability of the physical schemas with changes to the other
schemas.