SELECT @@GLOBAL.disconnect_on_expired_password; --echo 1 Expected --error ER_INCORRECT_GLOBAL_LOCAL_VAR SET @@GLOBAL.disconnect_on_expired_password=0; --echo Expected error 'Read only variable' SELECT @@GLOBAL.disconnect_on_expired_password; --echo 1 Expected SELECT @@disconnect_on_expired_password = @@GLOBAL.disconnect_on_expired_password; --echo 1 Expected --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT COUNT(@@local.disconnect_on_expired_password); --echo Expected error 'Variable is a GLOBAL variable' --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT COUNT(@@SESSION.disconnect_on_expired_password); --echo Expected error 'Variable is a GLOBAL variable' SELECT @@GLOBAL.disconnect_on_expired_password; --echo 1 Expected