Mysql workbench, normaliseren

-- MySQL Script generated by MySQL Workbench
-- 01/12/15 15:13:48
-- 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 COLLATE utf8_general_ci ;
USE `mydb` ;

-- -----------------------------------------------------
-- Table `mydb`.`postcodes`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`postcodes` ;

CREATE TABLE IF NOT EXISTS `mydb`.`postcodes` (
  `postcodeID` INT NOT NULL,
  `postcode` VARCHAR(45) NOT NULL,
  `straatnaam` VARCHAR(45) NOT NULL,
  `plaats` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`postcodeID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`adressen`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`adressen` ;

CREATE TABLE IF NOT EXISTS `mydb`.`adressen` (
  `adresID` INT NOT NULL,
  `postcodeID` INT NOT NULL,
  PRIMARY KEY (`adresID`),
  CONSTRAINT `postcodeID`
    FOREIGN KEY (`postcodeID`)
    REFERENCES `mydb`.`postcodes` (`postcodeID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`klanten`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`klanten` ;

CREATE TABLE IF NOT EXISTS `mydb`.`klanten` (
  `klantID` INT NOT NULL AUTO_INCREMENT,
  `voornaam` VARCHAR(45) NOT NULL,
  `tussenvoegsel` VARCHAR(45) NOT NULL,
  `achternaam` VARCHAR(45) NOT NULL,
  `adresID` INT NOT NULL,
  `huisnummer` VARCHAR(45) NOT NULL,
  `huisnummer_toevoeging` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`klantID`),
  INDEX `adresID_idx` (`adresID` ASC),
  CONSTRAINT `adresID`
    FOREIGN KEY (`adresID`)
    REFERENCES `mydb`.`adressen` (`adresID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`artikelen`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`artikelen` ;

CREATE TABLE IF NOT EXISTS `mydb`.`artikelen` (
  `artikelID` INT NOT NULL AUTO_INCREMENT,
  `artikelnaam` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`artikelID`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`orders`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`orders` ;

CREATE TABLE IF NOT EXISTS `mydb`.`orders` (
  `orderID` INT NOT NULL AUTO_INCREMENT,
  `artikelID` INT NOT NULL,
  `klantID` INT NOT NULL,
  `aantal` DECIMAL(10,0) NOT NULL,
  `prijs` DECIMAL(5,2) NOT NULL,
  PRIMARY KEY (`orderID`),
  INDEX `klantenID_idx` (`klantID` ASC),
  INDEX `artikelID_idx` (`artikelID` ASC),
  CONSTRAINT `klantenID`
    FOREIGN KEY (`klantID`)
    REFERENCES `mydb`.`klanten` (`klantID`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `artikelID`
    FOREIGN KEY (`artikelID`)
    REFERENCES `mydb`.`artikelen` (`artikelID`)
    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;