MySQL 无法添加外键约束 -- MySQL Workbench

Question

在 MySQL Workbench 中进行正向工程时，出现以下错误:

Executing SQL script in server
ERROR: Error 1215: Cannot add foreign key constraint
SQL Code:
    -- -----------------------------------------------------
    -- Table `sdosburn_guile`.`Employee`
    -- -----------------------------------------------------
    CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Employee` (
      `EmployeeID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
      `IsManager` TINYINT(1) NOT NULL,
      `PasswordHash` BLOB(256) NOT NULL,
      `NameLast` VARCHAR(25) NOT NULL,
      `NameFirst` VARCHAR(25) NOT NULL,
      `DateofBirth` DATE NOT NULL,
      `EmailAddress` VARCHAR(50) NOT NULL,
      `PhoneNumber` VARCHAR(13) NOT NULL,
      `Gender` TINYINT(1) NULL,
      `HireDate` DATE NULL,
      `_WarehouseID` INT UNSIGNED NOT NULL,
      PRIMARY KEY (`EmployeeID`),
      INDEX `fk_Employee_Warehouse1_idx` (`_WarehouseID` ASC),
      CONSTRAINT `fk_Employee_Warehouse1`
        FOREIGN KEY (`_WarehouseID`)
        REFERENCES `sdosburn_guile`.`Warehouse` (`WarehouseID`)
        ON DELETE NO ACTION
        ON UPDATE NO ACTION)
    ENGINE = InnoDB

SQL script execution finished: statements: 10 succeeded, 1 failed

Fetching back view definitions in final form.
Nothing to fetch

附件是我的数据库信息。我已经检查了数据类型、大小以及我在网上查找到的所有其他内容，请帮忙!!!!!!

-- MySQL Workbench Forward Engineering

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';

-- -----------------------------------------------------
-- Schema sdosburn_guile
-- -----------------------------------------------------

-- -----------------------------------------------------
-- Schema sdosburn_guile
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `sdosburn_guile` DEFAULT CHARACTER SET utf8 ;
-- -----------------------------------------------------
-- Schema named
-- -----------------------------------------------------
USE `sdosburn_guile` ;

<小时/>

--表sdosburn_guile。客户

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Customer` (
`CustomerID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`PasswordHash` BLOB(256) NOT NULL,
`NameLast` VARCHAR(25) NULL,
`NameFirst` VARCHAR(25) NULL,
`DateofBirth` DATE NULL,
`EmailAddress` VARCHAR(50) NOT NULL,
`PhoneNumber` VARCHAR(13) NULL,
PRIMARY KEY (`CustomerID`))
ENGINE = InnoDB;

<小时/>

-- 表sdosburn_guile.Book

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Book` (
`ItemID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`Price` DOUBLE NOT NULL,
`Title` VARCHAR(50) NOT NULL,
`Author` VARCHAR(50) NOT NULL,
`Genre` VARCHAR(20) NULL,
`ReleaseDate` VARCHAR(10) NULL,
`Publisher` VARCHAR(50) NULL,
PRIMARY KEY (`ItemID`))
ENGINE = InnoDB;

<小时/>

-- 表sdosburn_guile。音乐

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Music` (
`ItemID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`Price` DOUBLE NOT NULL,
`Title` VARCHAR(50) NOT NULL,
`Artist` VARCHAR(50) NOT NULL,
`Genre` VARCHAR(20) NULL,
`ReleaseDate` VARCHAR(10) NULL,
`Record Company` VARCHAR(50) NULL,
PRIMARY KEY (`ItemID`))
ENGINE = InnoDB;

<小时/>

-- 表sdosburn_guile.电影

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Movie` (
`ItemID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`Price` DOUBLE NOT NULL,
`Title` VARCHAR(50) NOT NULL,
`Genre` VARCHAR(20) NULL,
`ReleaseDate` VARCHAR(10) NULL,
`Actor_1` VARCHAR(50) NULL,
`Actor_2` VARCHAR(50) NULL,
`Actor_3` VARCHAR(50) NULL,
`Director` VARCHAR(50) NULL,
`Production Company` VARCHAR(50) NULL,
 PRIMARY KEY (`ItemID`))
 ENGINE = InnoDB;

<小时/>

--表sdosburn_guile.仓库

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Warehouse` (
`WarehouseID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`PhoneNumber` VARCHAR(13) NOT NULL,
`_ManageID` INT UNSIGNED NOT NULL,
PRIMARY KEY (`WarehouseID`),
INDEX `fk_Warehouse_Employee1_idx` (`_ManageID` ASC),
CONSTRAINT `fk_Warehouse_Employee1`
FOREIGN KEY (`_ManageID`)
REFERENCES `sdosburn_guile`.`Employee` (`EmployeeID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;

<小时/>

--表sdosburn_guile.员工

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Employee` (
`EmployeeID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`IsManager` TINYINT(1) NOT NULL,
`PasswordHash` BLOB(256) NOT NULL,
`NameLast` VARCHAR(25) NOT NULL,
`NameFirst` VARCHAR(25) NOT NULL,
`DateofBirth` DATE NOT NULL,
`EmailAddress` VARCHAR(50) NOT NULL,
`PhoneNumber` VARCHAR(13) NOT NULL,
`Gender` TINYINT(1) NULL,
`HireDate` DATE NULL,
`_WarehouseID` INT UNSIGNED NOT NULL,
PRIMARY KEY (`EmployeeID`),
INDEX `fk_Employee_Warehouse1_idx` (`_WarehouseID` ASC),
CONSTRAINT `fk_Employee_Warehouse1`
FOREIGN KEY (`_WarehouseID`)
REFERENCES `sdosburn_guile`.`Warehouse` (`WarehouseID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;

<小时/>

--表sdosburn_guile.地址

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Address` (
`AddressID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`Number` VARCHAR(10) NOT NULL,
`Street` VARCHAR(35) NOT NULL,
`State` VARCHAR(2) NOT NULL,
`Secondary` VARCHAR(20) NULL,
`LocalCustomerID` INT NULL,
`LocalEmployeeID` INT NULL,
`LocalWarehouseID` INT NULL,
`Addresscol` VARCHAR(45) NULL,
PRIMARY KEY (`AddressID`),
INDEX `fk_Address_Customer_idx` (`LocalCustomerID` ASC),
INDEX `fk_Address_Employee1_idx` (`LocalEmployeeID` ASC),
INDEX `fk_Address_Warehouse1_idx` (`LocalWarehouseID` ASC),
UNIQUE INDEX `LocalCustomerID_UNIQUE` (`LocalCustomerID` ASC),
UNIQUE INDEX `LocalEmployeeID_UNIQUE` (`LocalEmployeeID` ASC),
UNIQUE INDEX `Addresscol_UNIQUE` (`Addresscol` ASC),
CONSTRAINT `fk_Address_Customer`
FOREIGN KEY (`LocalCustomerID`)
REFERENCES `sdosburn_guile`.`Customer` (`CustomerID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Address_Employee1`
FOREIGN KEY (`LocalEmployeeID`)
REFERENCES `sdosburn_guile`.`Employee` (`EmployeeID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Address_Warehouse1`
FOREIGN KEY (`LocalWarehouseID`)
REFERENCES `sdosburn_guile`.`Warehouse` (`WarehouseID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;

<小时/>

-- 表sdosburn_guile。计费

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`Billing` (
`BillingID` INT NOT NULL AUTO_INCREMENT COMMENT 'Remove datatype and have key be the payment name?',
`_CustomerID` INT NOT NULL,
 `PaymentType` TINYINT NOT NULL DEFAULT 0,
`PaymentName` VARCHAR(50) NOT NULL COMMENT 'User\'s name for payment method',
`AccountNumber` VARCHAR(19) NOT NULL COMMENT 'Can be card number or bank account number',
`Routing Number` VARCHAR(9) NULL,
`CVV` VARCHAR(3) NULL,
`_BillingAddressID` INT UNSIGNED NOT NULL,
PRIMARY KEY (`BillingID`),
INDEX `fk_Billing_Customer1_idx` (`_CustomerID` ASC),
UNIQUE INDEX `BillingID_UNIQUE` (`BillingID` ASC),
INDEX `fk_Billing_Address1_idx` (`_BillingAddressID` ASC),
CONSTRAINT `fk_Billing_Customer1`
FOREIGN KEY (`_CustomerID`)
REFERENCES `sdosburn_guile`.`Customer` (`CustomerID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Billing_Address1`
FOREIGN KEY (`_BillingAddressID`)
REFERENCES `sdosburn_guile`.`Address` (`AddressID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;

<小时/>

--表sdosburn_guile.ShoppingCart

<小时/>

CREATE TABLE IF NOT EXISTS `sdosburn_guile`.`ShoppingCart` (
`CartID` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`_CustomerID` INT NOT NULL,
INDEX `fk_ShoppingCart_Customer1_idx` (`_CustomerID` ASC),
PRIMARY KEY (`CartID`),
CONSTRAINT `fk_ShoppingCart_Customer1`
FOREIGN KEY (`_CustomerID`)
REFERENCES `sdosburn_guile`.`Customer` (`CustomerID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;

....

SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

Answer 1

您的仓库表中的外键 _ManageID 不是另一个表中的主键，这就是您遇到错误的原因。一旦你解决了这个问题，你应该没问题，但我还没有验证过。