mysql set time to automatically generate

create table staff
(
  id          int      auto_increment
    primary key,
  name        varchar(32) not null,
  create_time datetime DEFAULT CURRENT_TIMESTAMP,
  update_time datetime ON UPDATE CURRENT_TIMESTAMP,
  status      int         null
)
  engine = InnoDB;

 

create_time will be automatically generated on insert 
update_time will be automatically generated on update