Question

i use mysql work bench to export sql from erd that i create, but when i try to importing it to mysql, i just get error 150 Cannot create table.

when i try to remove constrain of service child, its just work. but i need to keep those referenced.

and every table that reference to service table, also have this error too. where am i wrong ?

CREATE  TABLE IF NOT EXISTS `service` (
  `id` INT(11) NOT NULL AUTO_INCREMENT ,
  `name` VARCHAR(200) CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci' NOT NULL ,
  `seq` INT(11) NOT NULL ,
  `image` VARCHAR(200) CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci' NOT NULL ,
  PRIMARY KEY (`id`) )
ENGINE = MyISAM
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_general_ci;

CREATE  TABLE IF NOT EXISTS `service_package` (
  `id` INT(11) NOT NULL AUTO_INCREMENT ,
  `sc_id` INT(11) NOT NULL ,
  `lang` INT(11) NOT NULL ,
  `package` VARCHAR(200) CHARACTER SET 'utf8' COLLATE 'utf8_general_ci' NOT NULL ,
  PRIMARY KEY (`id`) ,
  INDEX `service_package_id` (`sc_id` ASC) ,
  CONSTRAINT `service_package_id`
    FOREIGN KEY (`sc_id` )
    REFERENCES `service` (`id` )
    ON DELETE CASCADE
    ON UPDATE CASCADE)
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_general_ci;

Answer 1

You’re using ENGINE = MyISAM on the service table. Try using ENGINE = InnoDB instead (as you do on the service_package table).

Foreign keys do not work with the MyIsam storage engine.