-- Table: country_codes
CREATE TABLE `country_codes` (
  `iso_3166_alpha2` CHAR(2) NOT NULL,
  PRIMARY KEY (`iso_3166_alpha2`)
) ENGINE=InnoDB
  DEFAULT CHARSET=utf8mb4
  COLLATE=utf8mb4_unicode_ci;

-- Table: country_networks
CREATE TABLE `country_networks` (
  `ip_country`             CHAR(2)           NOT NULL,
  `ip_network`             VARCHAR(15)       NOT NULL,
  `ip_network_bitmask`     TINYINT UNSIGNED  NOT NULL,
  `LastUpdated` TIMESTAMP on update CURRENT_TIMESTAMP NOT NULL,
  PRIMARY KEY (
    `ip_country`,
    `ip_network`,
    `ip_network_bitmask`
  ),
  CONSTRAINT `fk_country_networks_country_codes`
    FOREIGN KEY (`ip_country`)
    REFERENCES `country_codes` (`iso_3166_alpha2`)
    ON UPDATE CASCADE
    ON DELETE CASCADE
) ENGINE=InnoDB
  DEFAULT CHARSET=utf8mb4
  COLLATE=utf8mb4_unicode_ci;