Global directives can be overridden in backend and/or database directives, and backend directives can be overridden by database directives.
Global directives can be overridden in backend and/or database directives, and backend directives can be overridden by database directives.
全局指令可以被特定后台和特定数据库的指令复盖，并且后台指令也能被数据库指令复盖。