IBM
C2090-558 · Question #108
C2090-558 Question #108: Real Exam Question with Answer & Explanation
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Question
Which of the following statements is true about referential integrity?
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
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