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Drop Table cannot be used to drop a table referenced by a ______ constraint.

  • A.Primary Key
  • B.Local Key
  • C.Foreign Key
  • D.Composite Key

Answer: C

Correct answer: Foreign Key

If another table's foreign key refers to this one, dropping it would leave those references pointing at nothing, so the DBMS refuses. The referencing constraint or table has to go first.

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