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Which variable when set to 1 would enable foreign key checking for InnoDB tables?

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Which variable when set to 1 would enable foreign key checking for InnoDB tables?

(a) error_count

(b) identity

(c) foreign_key_checks

(d) autocommit

This question was addressed to me in an online quiz.

My question is based upon Session-Only System Variables topic in portion System, Status and User Variables of MySQL

1 Answer

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Best answer
Correct choice is (c) foreign_key_checks

Best explanation: Setting the variable ‘foreign_key_checks’ to 0 or 1 disables or enables the foreign key checking for InnoDB tables. The default is to perform checking. Disabling key checks can also be helpful.

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