Hi, for a synchronization application between 2 sites / databases we need to insert more than 10 characters. Out of the classical operation of the base inserts the first 10 characters. MySQL :: MySQL 5.7 Reference Manual :: 6.1.8 Server SQL Modes indique qu'il faut modifier le fichier de config de mysql, But every time you restart mysql it gets back up. We need this value to change. We do not know where the server takes this value or how to change it permanently. Thank you for your help.