text: DROP TABLE IF EXISTS moviestoredb.district;
  CREATE TABLE moviestoredb.district (
    `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    `name` varchar(50) NOT NULL,
    `code` varchar(6) NOT NULL,
    `updated` datetime(6) DEFAULT NULL,
    `city_fk` bigint(20) unsigned DEFAULT NULL,
    PRIMARY KEY (`id`),
    KEY `district_to_city_fk` (`city_fk`),
    CONSTRAINT `district_to_city_fk` FOREIGN KEY (`city_fk`) REFERENCES `city` (`id`) ON DELETE SET NULL
  ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='district data table';
  