mysql ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constrain fails

Others 2022-04-21 23:15:27 views: 0

ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constrain fails。

It may be that MySQL has set a foreign key association in InnoDB, making it impossible to update or delete data. This can be avoided by setting the FOREIGN_KEY_CHECKS variable.

1、set foreign_key_checks=0;

2. Delete the table to be deleted;

3、set foreign_key_checks=1;

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