我正在尝试使用此脚本创建数据库。但我在黑洞里。我不知道现在该怎么办。这是我的 MySQL 代码。请有人踢我。
如果我使用一个外键没问题,但我不知道如何使用更多。
EROOR 是:
#1005 - Can't create table 'ruda_dev_souteze2.results' (errno: 150)
查询是:
SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';
CREATE SCHEMA IF NOT EXISTS `ruda_dev_souteze2` DEFAULT CHARACTER SET utf8 COLLATE utf8_czech_ci ;
USE `ruda_dev_souteze2` ;
-- -----------------------------------------------------
-- Table `ruda_dev_souteze2`.`contests`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ruda_dev_souteze2`.`contests` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT ,
`name` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`date` DATE NOT NULL ,
`public` TINYINT(1) NOT NULL ,
PRIMARY KEY (`id`) )
ENGINE = InnoDB
AUTO_INCREMENT = 11
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_czech_ci;
-- -----------------------------------------------------
-- Table `ruda_dev_souteze2`.`people`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ruda_dev_souteze2`.`people` (
`contest_id` BIGINT(20) NOT NULL ,
`number` INT(11) NOT NULL ,
`category` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`fname` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`lname` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
PRIMARY KEY (`contest_id`, `number`) ,
INDEX `id_idx` (`contest_id` ASC) ,
CONSTRAINT `cidfp`
FOREIGN KEY (`contest_id` )
REFERENCES `ruda_dev_souteze2`.`contests` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_czech_ci;
-- -----------------------------------------------------
-- Table `ruda_dev_souteze2`.`subjects`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ruda_dev_souteze2`.`subjects` (
`contest_id` BIGINT(20) NOT NULL ,
`number` INT(11) NOT NULL ,
`name` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`direct` TINYINT(1) NOT NULL ,
`type` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`subjectscol` VARCHAR(45) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NULL DEFAULT NULL ,
PRIMARY KEY (`contest_id`, `number`) ,
INDEX `id_idx` (`contest_id` ASC) ,
CONSTRAINT `cidfs`
FOREIGN KEY (`contest_id` )
REFERENCES `ruda_dev_souteze2`.`contests` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_czech_ci;
-- -----------------------------------------------------
-- Table `ruda_dev_souteze2`.`results`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ruda_dev_souteze2`.`results` (
`contest_id` BIGINT(20) NOT NULL ,
`subject_number` INT(11) NOT NULL ,
`people_number` INT(11) NOT NULL ,
`number_8c2` FLOAT(10,2) NULL DEFAULT NULL ,
`time_time` TIME NULL DEFAULT NULL ,
`time_frag` FLOAT(2,2) NULL DEFAULT NULL ,
PRIMARY KEY (`contest_id`, `subject_number`, `people_number`) ,
INDEX `cidfr_idx` (`contest_id` ASC) ,
INDEX `snfr_idx` (`subject_number` ASC) ,
INDEX `pnfr_idx` (`people_number` ASC) ,
CONSTRAINT `cidfr`
FOREIGN KEY (`contest_id` )
REFERENCES `ruda_dev_souteze2`.`contests` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `snfr`
FOREIGN KEY (`subject_number` )
REFERENCES `ruda_dev_souteze2`.`subjects` (`number` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `pnfr`
FOREIGN KEY (`people_number` )
REFERENCES `ruda_dev_souteze2`.`people` (`number` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_czech_ci;
-- -----------------------------------------------------
-- Table `ruda_dev_souteze2`.`users`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ruda_dev_souteze2`.`users` (
`username` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`fullname` VARCHAR(255) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
`password` BINARY(40) NOT NULL ,
`access` CHAR(1) CHARACTER SET 'utf8' COLLATE 'utf8_czech_ci' NOT NULL ,
PRIMARY KEY (`username`) )
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8
COLLATE = utf8_czech_ci;
SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;