Question

我已经在MySQL Workbench中创建了一个EER图（如下图所示），并希望通过Forward Engineer来构建数据库。

在将模型选项配置为目标MySQL版本并从SQL代码的所有索引中删除“可见”一词之后（该代码位于本文的底部），因为它触发了错误，所以我来了遇到1005错误：

Executing SQL script in server
ERROR: Error 1005: Can't create table `books`.`books` (errno: 150 "Foreign key constraint is incorrectly formed")
SQL Code:
        -- -----------------------------------------------------
        -- Table `books`.`books`
        -- -----------------------------------------------------
        CREATE TABLE IF NOT EXISTS `books`.`books` (
          `bookID` INT(11) NOT NULL AUTO_INCREMENT,
          `name` VARCHAR(255) NULL,
          `price` DECIMAL(10,2) NULL,
          `book_prices_book_priceID` INT(11) NOT NULL,
          `book_types_book_typeID` INT(11) NOT NULL,
          `transactions_transactionID` INT(11) NOT NULL,
          `transactions_transaction_types_transaction_typeID` INT(11) NOT NULL,
          `ISBN` VARCHAR(13) NULL,
          PRIMARY KEY (`bookID`),
          INDEX `fk_books_book_prices1_idx` (`book_prices_book_priceID` ASC),
          INDEX `fk_books_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
          CONSTRAINT `fk_books_book_prices1`
            FOREIGN KEY (`book_prices_book_priceID`)
            REFERENCES `books`.`book_prices` (`book_priceID`)
            ON DELETE NO ACTION
            ON UPDATE NO ACTION,
          CONSTRAINT `fk_books_transactions1`
            FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
            REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
            ON DELETE NO ACTION
            ON UPDATE NO ACTION)
        ENGINE = InnoDB

SQL script execution finished: statements: 8 succeeded, 1 failed

Fetching back view definitions in final form.
Nothing to fetch

任何有关如何解决该问题的指导都将受到赞赏。

我正在使用的SQL代码如下：

-- 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='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION';

-- -----------------------------------------------------
-- Schema books
-- -----------------------------------------------------

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

-- -----------------------------------------------------
-- Table `books`.`book_prices`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`book_prices` (
  `book_priceID` INT(11) NOT NULL AUTO_INCREMENT,
  `bookID` INT(11) NULL,
  `price` DECIMAL(10,2) NULL,
  `currency` CHAR(2) NULL,
  `date_start` DATETIME NULL,
  `date_end` DATETIME NULL,
  PRIMARY KEY (`book_priceID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`transaction_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`transaction_types` (
  `transaction_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `transactionID` INT(11) NULL,
  PRIMARY KEY (`transaction_typeID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`transactions`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`transactions` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `transaction_types_transaction_typeID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_transactions_transaction_types1_idx` (`transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_transactions_transaction_types1`
    FOREIGN KEY (`transaction_types_transaction_typeID`)
    REFERENCES `books`.`transaction_types` (`transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`books`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`books` (
  `bookID` INT(11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(255) NULL,
  `price` DECIMAL(10,2) NULL,
  `book_prices_book_priceID` INT(11) NOT NULL,
  `book_types_book_typeID` INT(11) NOT NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NOT NULL,
  `ISBN` VARCHAR(13) NULL,
  PRIMARY KEY (`bookID`),
  INDEX `fk_books_book_prices1_idx` (`book_prices_book_priceID` ASC),
  INDEX `fk_books_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_books_book_prices1`
    FOREIGN KEY (`book_prices_book_priceID`)
    REFERENCES `books`.`book_prices` (`book_priceID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_books_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`batch_transaction`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`batch_transaction` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `batchID` INT(11) NOT NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_batch_transaction_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_batch_transaction_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`batches`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`batches` (
  `batchID` INT(11) NOT NULL AUTO_INCREMENT,
  `batch_transaction_transactionID` INT(11) NULL,
  `book_typeID` INT(11) NOT NULL,
  `price` DECIMAL(10,2) NULL,
  `supplierID` INT(11) NULL,
  PRIMARY KEY (`batchID`),
  INDEX `fk_batches_batch_transaction1_idx` (`batch_transaction_transactionID` ASC),
  CONSTRAINT `fk_batches_batch_transaction1`
    FOREIGN KEY (`batch_transaction_transactionID`)
    REFERENCES `books`.`batch_transaction` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`book_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`book_types` (
  `book_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(255) NULL,
  `books_bookID` INT(11) NOT NULL,
  `books_book_prices_book_priceID` INT(11) NOT NULL,
  `books_book_types_book_typeID` INT(11) NOT NULL,
  `batches_batchID` INT(11) NOT NULL,
  PRIMARY KEY (`book_typeID`),
  INDEX `fk_product_types_products1_idx` (`books_bookID` ASC, `books_book_prices_book_priceID` ASC, `books_book_types_book_typeID` ASC),
  INDEX `fk_product_types_batches1_idx` (`batches_batchID` ASC),
  CONSTRAINT `fk_book_types_books1`
    FOREIGN KEY (`books_bookID` , `books_book_prices_book_priceID` , `books_book_types_book_typeID`)
    REFERENCES `books`.`books` (`bookID` , `book_prices_book_priceID` , `book_types_book_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_book_types_batches1`
    FOREIGN KEY (`batches_batchID`)
    REFERENCES `books`.`batches` (`batchID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`suppliers`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`suppliers` (
  `supplierID` INT(11) NOT NULL AUTO_INCREMENT,
  `batches_batchID` INT(11) NOT NULL,
  `name` VARCHAR(255) NULL,
  PRIMARY KEY (`supplierID`),
  INDEX `fk_suppliers_batches1_idx` (`batches_batchID` ASC),
  CONSTRAINT `fk_suppliers_batches1`
    FOREIGN KEY (`batches_batchID`)
    REFERENCES `books`.`batches` (`batchID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`customer_transaction`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`customer_transaction` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `customerID` INT(11) NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_client_transaction_transactions1_idx` (`transactions_transactionID` ASC),
  CONSTRAINT `fk_customer_transaction_transactions1`
    FOREIGN KEY (`transactions_transactionID`)
    REFERENCES `books`.`transactions` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`customers`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`customers` (
  `customerID` INT(11) NOT NULL AUTO_INCREMENT,
  `books_bookID` INT(11) NULL,
  `books_book_prices_book_priceID` INT(11) NOT NULL,
  `books_book_types_book_typeID` INT(11) NOT NULL,
  `customer_transaction_transactionID` INT(11) NOT NULL,
  PRIMARY KEY (`customerID`),
  INDEX `fk_clients_products1_idx` (`books_bookID` ASC, `books_book_prices_book_priceID` ASC, `books_book_types_book_typeID` ASC),
  INDEX `fk_clients_client_transaction1_idx` (`customer_transaction_transactionID` ASC),
  CONSTRAINT `fk_customrs_products1`
    FOREIGN KEY (`books_bookID` , `books_book_prices_book_priceID` , `books_book_types_book_typeID`)
    REFERENCES `books`.`books` (`bookID` , `book_prices_book_priceID` , `book_types_book_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_customers_customer_transaction1`
    FOREIGN KEY (`customer_transaction_transactionID`)
    REFERENCES `books`.`customer_transaction` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`discounts`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`discounts` (
  `discountID` INT(11) NOT NULL AUTO_INCREMENT,
  `Name` VARCHAR(255) NOT NULL,
  `transactions_transactionID` INT(11) NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NULL,
  PRIMARY KEY (`discountID`),
  INDEX `fk_discounts_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_discounts_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`discount_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`discount_types` (
  `discount_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `Type` VARCHAR(255) NULL,
  `discounts_discountID` INT(11) NOT NULL,
  PRIMARY KEY (`discount_typeID`),
  INDEX `fk_discount_types_discounts1_idx` (`discounts_discountID` ASC),
  CONSTRAINT `fk_discount_types_discounts1`
    FOREIGN KEY (`discounts_discountID`)
    REFERENCES `books`.`discounts` (`discountID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`storagedistribution`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`storagedistribution` (
  `storagedistributionID` INT(11) NOT NULL AUTO_INCREMENT,
  `Name` VARCHAR(255) NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NOT NULL,
  PRIMARY KEY (`storagedistributionID`),
  INDEX `fk_storagedistribution_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_storagedistribution_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    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;

修改1： 从两个transaction_typeID books表中删除了batch_transaction，并运行了以下SQL脚本：

-- 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='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION';

-- -----------------------------------------------------
-- Schema books
-- -----------------------------------------------------

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

-- -----------------------------------------------------
-- Table `books`.`book_prices`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`book_prices` (
  `book_priceID` INT(11) NOT NULL AUTO_INCREMENT,
  `bookID` INT(11) NULL,
  `price` DECIMAL(10,2) NULL,
  `currency` CHAR(2) NULL,
  `date_start` DATETIME NULL,
  `date_end` DATETIME NULL,
  PRIMARY KEY (`book_priceID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`transaction_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`transaction_types` (
  `transaction_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `transactionID` INT(11) NULL,
  PRIMARY KEY (`transaction_typeID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`transactions`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`transactions` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `transaction_types_transaction_typeID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_transactions_transaction_types1_idx` (`transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_transactions_transaction_types1`
    FOREIGN KEY (`transaction_types_transaction_typeID`)
    REFERENCES `books`.`transaction_types` (`transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`books`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`books` (
  `bookID` INT(11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(255) NULL,
  `price` DECIMAL(10,2) NULL,
  `book_prices_book_priceID` INT(11) NOT NULL,
  `book_types_book_typeID` INT(11) NOT NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `ISBN` VARCHAR(13) NULL,
  PRIMARY KEY (`bookID`),
  INDEX `fk_books_book_prices1_idx` (`book_prices_book_priceID` ASC),
  INDEX `fk_books_transactions1_idx` (`transactions_transactionID` ASC),
  CONSTRAINT `fk_books_book_prices1`
    FOREIGN KEY (`book_prices_book_priceID`)
    REFERENCES `books`.`book_prices` (`book_priceID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_books_transactions1`
    FOREIGN KEY (`transactions_transactionID`)
    REFERENCES `books`.`transactions` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`batch_transaction`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`batch_transaction` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `batchID` INT(11) NOT NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_batch_transaction_transactions1_idx` (`transactions_transactionID` ASC),
  CONSTRAINT `fk_batch_transaction_transactions1`
    FOREIGN KEY (`transactions_transactionID`)
    REFERENCES `books`.`transactions` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`batches`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`batches` (
  `batchID` INT(11) NOT NULL AUTO_INCREMENT,
  `batch_transaction_transactionID` INT(11) NULL,
  `book_typeID` INT(11) NOT NULL,
  `price` DECIMAL(10,2) NULL,
  `supplierID` INT(11) NULL,
  PRIMARY KEY (`batchID`),
  INDEX `fk_batches_batch_transaction1_idx` (`batch_transaction_transactionID` ASC),
  CONSTRAINT `fk_batches_batch_transaction1`
    FOREIGN KEY (`batch_transaction_transactionID`)
    REFERENCES `books`.`batch_transaction` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`book_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`book_types` (
  `book_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(255) NULL,
  `books_bookID` INT(11) NOT NULL,
  `books_book_prices_book_priceID` INT(11) NOT NULL,
  `books_book_types_book_typeID` INT(11) NOT NULL,
  `batches_batchID` INT(11) NOT NULL,
  PRIMARY KEY (`book_typeID`),
  INDEX `fk_product_types_products1_idx` (`books_bookID` ASC, `books_book_prices_book_priceID` ASC, `books_book_types_book_typeID` ASC),
  INDEX `fk_product_types_batches1_idx` (`batches_batchID` ASC),
  CONSTRAINT `fk_book_types_books1`
    FOREIGN KEY (`books_bookID` , `books_book_prices_book_priceID` , `books_book_types_book_typeID`)
    REFERENCES `books`.`books` (`bookID` , `book_prices_book_priceID` , `book_types_book_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_book_types_batches1`
    FOREIGN KEY (`batches_batchID`)
    REFERENCES `books`.`batches` (`batchID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`suppliers`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`suppliers` (
  `supplierID` INT(11) NOT NULL AUTO_INCREMENT,
  `batches_batchID` INT(11) NOT NULL,
  `name` VARCHAR(255) NULL,
  PRIMARY KEY (`supplierID`),
  INDEX `fk_suppliers_batches1_idx` (`batches_batchID` ASC),
  CONSTRAINT `fk_suppliers_batches1`
    FOREIGN KEY (`batches_batchID`)
    REFERENCES `books`.`batches` (`batchID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`customer_transaction`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`customer_transaction` (
  `transactionID` INT(11) NOT NULL AUTO_INCREMENT,
  `customerID` INT(11) NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `date` DATETIME NULL,
  PRIMARY KEY (`transactionID`),
  INDEX `fk_client_transaction_transactions1_idx` (`transactions_transactionID` ASC),
  CONSTRAINT `fk_customer_transaction_transactions1`
    FOREIGN KEY (`transactions_transactionID`)
    REFERENCES `books`.`transactions` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`customers`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`customers` (
  `customerID` INT(11) NOT NULL AUTO_INCREMENT,
  `books_bookID` INT(11) NULL,
  `books_book_prices_book_priceID` INT(11) NOT NULL,
  `books_book_types_book_typeID` INT(11) NOT NULL,
  `customer_transaction_transactionID` INT(11) NOT NULL,
  PRIMARY KEY (`customerID`),
  INDEX `fk_clients_products1_idx` (`books_bookID` ASC, `books_book_prices_book_priceID` ASC, `books_book_types_book_typeID` ASC),
  INDEX `fk_clients_client_transaction1_idx` (`customer_transaction_transactionID` ASC),
  CONSTRAINT `fk_customrs_products1`
    FOREIGN KEY (`books_bookID` , `books_book_prices_book_priceID` , `books_book_types_book_typeID`)
    REFERENCES `books`.`books` (`bookID` , `book_prices_book_priceID` , `book_types_book_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_customers_customer_transaction1`
    FOREIGN KEY (`customer_transaction_transactionID`)
    REFERENCES `books`.`customer_transaction` (`transactionID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`discounts`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`discounts` (
  `discountID` INT(11) NOT NULL AUTO_INCREMENT,
  `Name` VARCHAR(255) NOT NULL,
  `transactions_transactionID` INT(11) NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NULL,
  PRIMARY KEY (`discountID`),
  INDEX `fk_discounts_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_discounts_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`discount_types`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`discount_types` (
  `discount_typeID` INT(11) NOT NULL AUTO_INCREMENT,
  `Type` VARCHAR(255) NULL,
  `discounts_discountID` INT(11) NOT NULL,
  PRIMARY KEY (`discount_typeID`),
  INDEX `fk_discount_types_discounts1_idx` (`discounts_discountID` ASC),
  CONSTRAINT `fk_discount_types_discounts1`
    FOREIGN KEY (`discounts_discountID`)
    REFERENCES `books`.`discounts` (`discountID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `books`.`storagedistribution`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `books`.`storagedistribution` (
  `storagedistributionID` INT(11) NOT NULL AUTO_INCREMENT,
  `Name` VARCHAR(255) NULL,
  `transactions_transactionID` INT(11) NOT NULL,
  `transactions_transaction_types_transaction_typeID` INT(11) NOT NULL,
  PRIMARY KEY (`storagedistributionID`),
  INDEX `fk_storagedistribution_transactions1_idx` (`transactions_transactionID` ASC, `transactions_transaction_types_transaction_typeID` ASC),
  CONSTRAINT `fk_storagedistribution_transactions1`
    FOREIGN KEY (`transactions_transactionID` , `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID` , `transaction_types_transaction_typeID`)
    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;

现在我在表book_types中遇到了相同的错误：

ERROR: Error 1005: Can't create table `books`.`book_types` (errno: 150 "Foreign key constraint is incorrectly formed")
SQL Code:
        -- -----------------------------------------------------
        -- Table `books`.`book_types`
        -- -----------------------------------------------------
        CREATE TABLE IF NOT EXISTS `books`.`book_types` (
          `book_typeID` INT(11) NOT NULL AUTO_INCREMENT,
          `name` VARCHAR(255) NULL,
          `books_bookID` INT(11) NOT NULL,
          `books_book_prices_book_priceID` INT(11) NOT NULL,
          `books_book_types_book_typeID` INT(11) NOT NULL,
          `batches_batchID` INT(11) NOT NULL,
          PRIMARY KEY (`book_typeID`),
          INDEX `fk_product_types_products1_idx` (`books_bookID` ASC, `books_book_prices_book_priceID` ASC, `books_book_types_book_typeID` ASC),
          INDEX `fk_product_types_batches1_idx` (`batches_batchID` ASC),
          CONSTRAINT `fk_book_types_books1`
            FOREIGN KEY (`books_bookID` , `books_book_prices_book_priceID` , `books_book_types_book_typeID`)
            REFERENCES `books`.`books` (`bookID` , `book_prices_book_priceID` , `book_types_book_typeID`)
            ON DELETE NO ACTION
            ON UPDATE NO ACTION,
          CONSTRAINT `fk_book_types_batches1`
            FOREIGN KEY (`batches_batchID`)
            REFERENCES `books`.`batches` (`batchID`)
            ON DELETE NO ACTION
            ON UPDATE NO ACTION)
        ENGINE = InnoDB

SQL script execution finished: statements: 11 succeeded, 1 failed

Answer 1

FOREIGN KEY (`transactions_transactionID`, `transactions_transaction_types_transaction_typeID`)
    REFERENCES `books`.`transactions` (`transactionID`, `transaction_types_transaction_typeID`)

假设您有充分的理由将transaction_typeID存储在books表中，尽管它在功能上取决于transactionID。任何外键约束都需要在两个表（引用/子和引用/父）中都有一个索引，以支持约束检查。

如果在子表（books）中找不到支持索引，则引擎将创建一个。因此，您具有以下索引：

INDEX `fk_books_transactions1_idx` (
    `transactions_transactionID` ASC,
    `transactions_transaction_types_transaction_typeID` ASC
)

但是引擎不会在父表（transactions）中创建索引。您已经拥有的索引是：

PRIMARY KEY (`transactionID`),
INDEX `fk_transactions_transaction_types1_idx` (`transaction_types_transaction_typeID` ASC),

它们都不支持FK约束。因此，您需要在transactions表中定义一个新索引：

INDEX (`transactionID`, `transaction_types_transaction_typeID`)

但是-这是一种非规范化的设计，如果您有充分的理由，那也不错，因为一致性是由FK约束强制执行的。但是，如果您没有充分的理由将transaction_typeID存储在books表中，则应该删除它，并将FK约束更改为

FOREIGN KEY (`transactions_transactionID`) REFERENCES `books`.`transactions` (`transactionID`)

现在它正在引用父表的主键。这是外键的基本设计，并且PRIMARY KEY（索引）支持该约束。

Answer 2

通过更新图中的关系解决了问题。

第一个图是非规范化的，如果有正当性的话，这不一定很糟糕（一致性是由FK约束强制执行的。）

我最终只引用了“父”表的PK，即_types表是父表。

最终图：

正向工程EER图时出现错误1005

2 个答案: