Which of the following focuses on actual storage and organisation of data on…
2022
Which of the following focuses on actual storage and organisation of data on disk blocks?
- A.
External schema
- B.
Conceptual schema
- C.
Physical schema
- D.
Both external and conceptual schema
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Correct answer: C
The physical schema defines how data is actually stored on the storage medium, including disk blocks and indexing structures. Unlike conceptual schemas which focus on logical relationships, or external schemas for user views, the physical layer manages implementation details.