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If the storage engine InnoDB is not used, foreign key cannot be used.

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If the storage engine InnoDB is not used, foreign key cannot be used.

(a) True

(b) False

I have been asked this question in unit test.

This interesting question is from Foreign Keys and Referential Integrity in portion Using SQL to Manage Data of MySQL

1 Answer

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Best answer
Correct answer is (a) True

To explain I would say: The foreign key support is exclusively provided by the storage engine named InnoDB. Without its inclusion, foreign keys cannot be used. However it is possible to implement with application logic.

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