Which of the following best describes the ON DELETE CASCADE referential integrity constraint?

Question

Options

• AIf a parent key is deleted, any child keys referenced by the parent key are automatically
• BIf any child key references a parent key, the record containing the parent key cannot be
• CIf a parent key is deleted, all child keys are automatically set to a specified value.
• DIf a parent key is deleted, no test is made for referential integrity.

• A
  73% (19)
• B
  15% (4)
• C
  8% (2)
• D
  4% (1)

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