mysql 插入一个字段 id自增并设置为主键

ALTER TABLE doorSensorDevice ADD id INT(16) NOT NULL PRIMARY KEY AUTO_INCREMENT FIRST;

CREATE TABLE doorSensorDevice
(
       id INT(16) NOT NULL PRIMARY KEY AUTO_INCREMENT,
       deviceId CHAR(40) NOT NULL,       
	   batteryCapacity   INT,
	   reportStatus      TINYINT,      
       reportDateTime   DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP	      
)ENGINE=InnoDB DEFAULT CHARSET=utf8;