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Logical data independence is the ability to

2528Medium DSSSB TGT Computer Science 0 replies 1 views
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Logical data independence is the ability to

  • Achange the physical storage of the data without changing the conceptual schema
  • Baccess the data from any physical location
  • Cchange the conceptual schema without changing the external schemas or the application programs
  • Dstore data without having any schema
Correct answer: C

Explanation

Logical data independence protects the user views and programs from changes in the conceptual schema, while physical data independence (option A) protects the conceptual schema from changes in storage.
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