alter table face_camera add id_version VARCHAR(32) COMMENT "摄像头类型ID"; ALTER TABLE face_camera CHANGE id_version id_brand VARCHAR(32) COMMENT "摄像头品牌ID"; ALTER TABLE face_camera CHANGE camerat_longitude camera_longitude VARCHAR(100) COMMENT "摄像头经度"; ALTER table face_camera add port VARCHAR(32) COMMENT "端口号";