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

Question

Options

• AIf a parent key is updated, any child keys that reference the parent key are automatically updated.
• BIf a parent key is updated, all child keys are automatically set to a specified value.
• CIf a parent key is updated, no test is made for referential integrity.
• DIf a parent key is updated, any child keys that reference the parent key cannot be updated.

• A
  82% (36)
• B
  2% (1)
• C
  11% (5)
• D
  5% (2)

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