Choose correct Statements
A) A Data Model is collection of concepts that can be use to
describe the structure of the database.
B) Physical Level of abstraction tells the actual location of the data
that is being stored by the user. Also tells us how the data is
actually stored in memory
c) Capacity to change the physical schema without having
the conceptual (Logical) schema is called logical data inden
D) In generalization, the higher level entity can also combine
other lower level entities to make further higher level entity
E.) Integrity constraints guard against accidental damage
database
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Answer:
D is the correct plz mark as brilliance
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