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When can an insert of a new primary key value threaten referential integrity?

April 26, 2017insert integrity key primary referential threaten value

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When can an insert of a new primary key value threaten referential integrity?

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A218) Never. New primary key values are not a problem. However, the values of foreign key inserts must have corresponding primary key values in their related tables. And updates of primary key values may require changes in foreign key values to maintain referential integrity.