Which of the following statements is true about referential integrity?

Question

Options

• APrimary and foreign key values must be integers.
• BYou must explicitly define constraint names for primary and foreign key columns.
• CA row in a table cannot be deleted if it contains a foreign key value that exists as a primary key
• DA row in a table cannot be deleted if it contains a primary key value that is referenced by a foreign

• A
  12% (4)
• B
  3% (1)
• C
  9% (3)
• D
  76% (26)

No community discussion yet for this question.