ALTER TABLE t_camera_channel ADD COLUMN region_code VARCHAR(255) COMMENT '市区编码'; ALTER TABLE t_camera_channel ADD COLUMN region_name VARCHAR(255) COMMENT '市区名称'; ALTER TABLE t_camera_organization ADD COLUMN count INT DEFAULT 0; ALTER TABLE t_camera_organization ADD COLUMN is_parent INT COMMENT '是否父节点'; ALTER TABLE t_camera_organization ADD COLUMN path VARCHAR(500) COMMENT '从属关系';