系统分析与设计作业Lesson5

1、 领域建模

a. 阅读 Asg_RH 文档，按用例构建领域模型

b. 数据库建模(E-R 模型)

使用MySQL workbench

• E-R模型

• SQL脚本

-- MySQL Script generated by MySQL Workbench
-- Sun Apr 29 10:28:31 2018
-- Model: New Model    Version: 1.0
-- 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 mydb
-- -----------------------------------------------------

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

-- -----------------------------------------------------
-- Table `mydb`.`address`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`address` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `city` VARCHAR(45) NOT NULL,
  `road` VARCHAR(45) NOT NULL,
  `hotel_id` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`hotel`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`hotel` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(45) NOT NULL,
  `rating` INT ZEROFILL NOT NULL,
  `avg_price` REAL ZEROFILL NOT NULL,
  `address_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_hotel_address1_idx` (`address_id` ASC),
  CONSTRAINT `fk_hotel_address1`
    FOREIGN KEY (`address_id`)
    REFERENCES `mydb`.`address` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`reservation`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`reservation` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `hotel_id` INT NOT NULL,
  `checkin_date` DATE NOT NULL,
  `checkout_date` DATE NOT NULL,
  `hotel_id1` INT NOT NULL,
  PRIMARY KEY (`id`, `hotel_id`),
  INDEX `fk_reservation_hotel1_idx` (`hotel_id1` ASC),
  CONSTRAINT `fk_reservation_hotel1`
    FOREIGN KEY (`hotel_id1`)
    REFERENCES `mydb`.`hotel` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`customer_info`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`customer_info` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `email` VARCHAR(45) NOT NULL,
  `name` VARCHAR(45) NOT NULL,
  `reservation_id` INT NOT NULL,
  `reservation_hotel_id` INT NOT NULL,
  `customer_infocol` VARCHAR(45) NOT NULL,
  `reservation_id1` INT NOT NULL,
  `reservation_hotel_id1` INT NOT NULL,
  PRIMARY KEY (`id`, `customer_infocol`, `reservation_hotel_id`),
  INDEX `fk_customer_info_reservation1_idx` (`reservation_id1` ASC, `reservation_hotel_id1` ASC),
  CONSTRAINT `fk_customer_info_reservation1`
    FOREIGN KEY (`reservation_id1` , `reservation_hotel_id1`)
    REFERENCES `mydb`.`reservation` (`id` , `hotel_id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`room`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`room` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `type` VARCHAR(45) NOT NULL,
  `price` INT NOT NULL,
  `hotel_id` INT NOT NULL,
  `hotel_id1` INT NOT NULL,
  PRIMARY KEY (`id`, `hotel_id`),
  INDEX `fk_room_hotel1_idx` (`hotel_id1` ASC),
  CONSTRAINT `fk_room_hotel1`
    FOREIGN KEY (`hotel_id1`)
    REFERENCES `mydb`.`hotel` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`room_info`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`room_info` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `adult` INT ZEROFILL NOT NULL,
  `children` INT ZEROFILL NOT NULL,
  `reservation_id` INT NOT NULL,
  `reservation_hotel_id` INT NOT NULL,
  `reservation_id2` INT NOT NULL,
  `reservation_hotel_id2` INT NOT NULL,
  PRIMARY KEY (`id`, `reservation_id`, `reservation_hotel_id`),
  INDEX `fk_room_info_reservation1_idx` (`reservation_id2` ASC, `reservation_hotel_id2` ASC),
  CONSTRAINT `fk_room_info_reservation1`
    FOREIGN KEY (`reservation_id2` , `reservation_hotel_id2`)
    REFERENCES `mydb`.`reservation` (`id` , `hotel_id`)
    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;

• 数据库逻辑模型 与 领域模型 的异同
  
  • 数据库模型更具体，有由领域模型中关系得到的具体表间关系、也有每个属性的具体类型等
  • 领域模型更关注整体