SELECT @@GLOBAL.disconnect_on_expired_password; @@GLOBAL.disconnect_on_expired_password 1 1 Expected SET @@GLOBAL.disconnect_on_expired_password=0; ERROR HY000: Variable 'disconnect_on_expired_password' is a read only variable Expected error 'Read only variable' SELECT @@GLOBAL.disconnect_on_expired_password; @@GLOBAL.disconnect_on_expired_password 1 1 Expected SELECT @@disconnect_on_expired_password = @@GLOBAL.disconnect_on_expired_password; @@disconnect_on_expired_password = @@GLOBAL.disconnect_on_expired_password 1 1 Expected SELECT COUNT(@@local.disconnect_on_expired_password); ERROR HY000: Variable 'disconnect_on_expired_password' is a GLOBAL variable Expected error 'Variable is a GLOBAL variable' SELECT COUNT(@@SESSION.disconnect_on_expired_password); ERROR HY000: Variable 'disconnect_on_expired_password' is a GLOBAL variable Expected error 'Variable is a GLOBAL variable' SELECT @@GLOBAL.disconnect_on_expired_password; @@GLOBAL.disconnect_on_expired_password 1 1 Expected