J:\wamp\bin\mysql\mysql5.7.14\bin>mysql_upgrade.exe --user=root --host=localhost --password=mon_passe
mysql.columns_priv OK mysql.db OK mysql.event OK mysql.func OK mysql.general_log OK mysql.help_category OK mysql.help_keyword OK mysql.help_relation OK mysql.help_topic OK mysql.host OK mysql.innodb_index_stats OK mysql.innodb_table_stats OK mysql.ndb_binlog_index OK etc.Il peut y avoir plusieurs avertissements du style :
Warning: Using a password on the command line interface can be insecure.Ne pas en tenir compte, c'est normal.