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1D0-441 · Question #59

Which type of relational integrity is violated if a primary key in a database has a null value?

The correct answer is A. Entity integrity. See the full explanation below for the reasoning.

Question

Which type of relational integrity is violated if a primary key in a database has a null value?

Options

  • AEntity integrity
  • BDomain integrity
  • CDomain constraints
  • DReferential integrity

How the community answered

(42 responses)
  • A
    79% (33)
  • B
    2% (1)
  • C
    12% (5)
  • D
    7% (3)

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Full 1D0-441 Practice