diff --git a/HowtoMySQL/Troubleshooting.md b/HowtoMySQL/Troubleshooting.md
index 46fd9c4a..fd617a6a 100644
--- a/HowtoMySQL/Troubleshooting.md
+++ b/HowtoMySQL/Troubleshooting.md
@@ -772,4 +772,23 @@ mysql> SHOW GLOBAL VARIABLES LIKE '%recover_options%';
 ~~~
 
 Cela signifie que lorsqu'une table est réparé, si le résultat diffère, MySQL fait une backup.  
-Plus d'informations sur la [documentation](https://dev.mysql.com/doc/refman/5.5/en/server-options.html#option_mysqld_myisam-recover-options).
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+Plus d'informations sur la [documentation](https://dev.mysql.com/doc/refman/5.5/en/server-options.html#option_mysqld_myisam-recover-options).
+
+## Erreur 1217
+
+~~~
+MariaDB [(none)]> drop database `db_name`;
+ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails
+~~~
+
+Pour contourner ce problème on peut faire :
+
+~~~
+MariaDB [(none)]> SET FOREIGN_KEY_CHECKS=0;
+Query OK, 0 rows affected (0.00 sec)
+MariaDB [(none)]> drop database `db_name`;
+Query OK, 1 row affected (0.00 sec)
+
+MariaDB [(none)]> SET FOREIGN_KEY_CHECKS=1;
+Query OK, 0 rows affected (0.00 sec)
+~~~
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