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An advantage of views is

  • A.Data security
  • B.Derived columns

  • C.Hiding of complex queries
  • D.All of the above

Answer: A

Correct answer: All of the above

All three are genuine advantages. A view can omit columns a user should not see, present computed columns that exist nowhere in the base tables, and stand in for a complicated query so that users need write only a simple one against it.

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