Автоинкремент в C# MySQL

CREATE TABLE `patient` (
  `id_patient` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  `surname` CHAR(30),
  `name` CHAR(30),
  `fathername` CHAR(30),
  `birthday` DATE,
  `sex` CHAR(1),
  `policy` CHAR(60),
  `address` CHAR(70),
  `telephone` CHAR(12),
  `profession` CHAR(50),
  `complaints` CHAR(255),
  `diagnosis` CHAR(255),
  `comment` tinytext,
  PRIMARY KEY(`id_patient`)
)

CREATE TABLE `pictures` (
  `id_picture` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  `id_patient` INT(11) UNSIGNED NOT NULL,
  `date_p` DATE NOT NULL,
  `id_discr` INT(11) UNSIGNED NOT NULL,
  `file_p` CHAR(255) NOT NULL,
  `id_mode` INT(11) UNSIGNED,
  `research_type` tinytext,
  `research_method` tinytext,
  `anatomical_area` tinytext,
  `projection` tinytext,
  PRIMARY KEY(`id_picture`),
  CONSTRAINT `PatPic` FOREIGN KEY (`id_patient`)
    REFERENCES `patient`(`id_patient`)
    ON DELETE CASCADE
    ON UPDATE CASCADE,
)

CONSTRAINT `PatPic` FOREIGN KEY (`id_patient`)
    REFERENCES `patient`(`id_patient`)
    ON DELETE CASCADE
    ON UPDATE CASCADE