Error Code 1022 on MySQL WorkBench - mysql

Question

I'm trying to create these tables but I'm getting Error 1022 when creating the table cadastro_fornecedor.
I don't know where to start to solve this issue so any kind of help is welcome.
Here is the .sql:
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
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ;
USE `mydb` ;
-- -----------------------------------------------------
-- Table `mydb`.`administrador`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`administrador` (
`id_administrador` INT NOT NULL,
`nome` VARCHAR(45) NULL,
`senha` VARCHAR(45) NULL,
`CPF` INT NULL,
`endereço` VARCHAR(45) NULL,
`data_nascimento` DATE NULL,
PRIMARY KEY (`id_administrador`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`cadastro_usuario`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`cadastro_usuario` (
`id_cadastro` INT NOT NULL AUTO_INCREMENT,
`data_cadastro` DATETIME NOT NULL,
`id_administrador` INT NULL,
`usuario` INT NULL,
PRIMARY KEY (`id_cadastro`),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `matricula_idx` (`usuario` ASC),
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `matricula`
FOREIGN KEY (`usuario`)
REFERENCES `mydb`.`usuario_cadastrado` (`matricula`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`usuario_cadastrado`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`usuario_cadastrado` (
`matricula` INT NOT NULL,
`nome` VARCHAR(45) NULL,
`endereco` VARCHAR(45) NULL,
`senha` VARCHAR(45) NULL,
`nacionalidade` VARCHAR(45) NULL DEFAULT 'brasileiro',
`naturalidade` VARCHAR(45) NULL,
`sexo` CHAR NULL,
`data_nascimento` DATE NULL,
`CPF` INT NULL,
`nome_pai` VARCHAR(45) NULL,
`nome_mae` VARCHAR(45) NULL,
`telefone_celular` VARCHAR(15) NULL,
`telefone_fixo` VARCHAR(15) NULL,
`id_cadastro` INT NULL,
PRIMARY KEY (`matricula`),
INDEX `id_cadastro_idx` (`id_cadastro` ASC),
CONSTRAINT `id_cadastro`
FOREIGN KEY (`id_cadastro`)
REFERENCES `mydb`.`cadastro_usuario` (`id_cadastro`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`obra`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`obra` (
`ISBN` VARCHAR(20) NOT NULL,
`titulo` VARCHAR(45) NULL,
`autor` VARCHAR(45) NULL,
`ano` YEAR NULL,
`editora` VARCHAR(45) NULL,
`categoria` VARCHAR(45) NULL,
`assunto` VARCHAR(45) NULL,
`descricao` VARCHAR(45) NULL,
PRIMARY KEY (`ISBN`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`fornecedores`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`fornecedores` (
`CNPJ` VARCHAR(45) NOT NULL,
`nome` VARCHAR(45) NOT NULL,
`endereco` VARCHAR(45) NULL,
`telefone` VARCHAR(45) NULL,
PRIMARY KEY (`CNPJ`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`exemplar`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`exemplar` (
`codigo_exemplar` INT NOT NULL,
`data_aquisicao` DATE NULL,
`edição` INT NULL,
`volume` INT NULL,
`paginas` INT NULL,
`ISBN` VARCHAR(20) NULL,
`CNPJ` VARCHAR(45) NULL,
PRIMARY KEY (`codigo_exemplar`),
INDEX `ISBN_idx` (`ISBN` ASC),
INDEX `CNPJ_idx` (`CNPJ` ASC),
CONSTRAINT `ISBN`
FOREIGN KEY (`ISBN`)
REFERENCES `mydb`.`obra` (`ISBN`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `CNPJ`
FOREIGN KEY (`CNPJ`)
REFERENCES `mydb`.`fornecedores` (`CNPJ`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`cadastro_fornecedor`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`cadastro_fornecedor` (
`id_cadastro` INT NOT NULL AUTO_INCREMENT,
`data` DATETIME NULL,
`id_administrador` INT NULL,
`CNPJ` VARCHAR(45) NULL,
PRIMARY KEY (`id_cadastro`),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `CNPJ_idx` (`CNPJ` ASC),
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `CNPJ`
FOREIGN KEY (`CNPJ`)
REFERENCES `mydb`.`fornecedores` (`CNPJ`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`emprestimo`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`emprestimo` (
`id_emprestimo` INT NOT NULL AUTO_INCREMENT,
`data_emprestimo` DATE NULL,
`data_devolucao_prevista` DATE NULL,
`matricula` INT NULL,
`id_administrador` INT NULL,
`codigo_exemplar` INT NULL,
PRIMARY KEY (`id_emprestimo`),
INDEX `matricula_idx` (`matricula` ASC),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `codigo_exemplar_idx` (`codigo_exemplar` ASC),
CONSTRAINT `matricula`
FOREIGN KEY (`matricula`)
REFERENCES `mydb`.`usuario_cadastrado` (`matricula`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `codigo_exemplar`
FOREIGN KEY (`codigo_exemplar`)
REFERENCES `mydb`.`exemplar` (`codigo_exemplar`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`devolucao`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`devolucao` (
`id_devolucao` INT NOT NULL,
`data_devolucao` DATE NULL,
`multa` INT NULL,
`matricula` INT NULL,
`id_administrador` INT NULL,
PRIMARY KEY (`id_devolucao`),
INDEX `matricula_idx` (`matricula` ASC),
INDEX `id_administrador_idx` (`id_administrador` ASC),
CONSTRAINT `matricula`
FOREIGN KEY (`matricula`)
REFERENCES `mydb`.`usuario_cadastrado` (`matricula`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`exclusao`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`exclusao` (
`id_exclusao` INT NOT NULL AUTO_INCREMENT,
`data_exclusao` DATE NULL,
`id_administrador` INT NULL,
`codigo_exemplar` INT NULL,
PRIMARY KEY (`id_exclusao`),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `codigo_exemplar_idx` (`codigo_exemplar` ASC),
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `codigo_exemplar`
FOREIGN KEY (`codigo_exemplar`)
REFERENCES `mydb`.`exemplar` (`codigo_exemplar`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`registro`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`registro` (
`id_registro` INT NOT NULL AUTO_INCREMENT,
`data_registro` DATE NULL,
`id_administrador` INT NULL,
`codigo_exemplar` INT NULL,
PRIMARY KEY (`id_registro`),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `codigo_exemplar_idx` (`codigo_exemplar` ASC),
CONSTRAINT `id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `codigo_exemplar`
FOREIGN KEY (`codigo_exemplar`)
REFERENCES `mydb`.`exemplar` (`codigo_exemplar`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`reserva`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`reserva` (
`id_reserva` INT NOT NULL,
`data_reserva` DATE NULL,
`matricula` INT NULL,
`ISBN` VARCHAR(20) NULL,
PRIMARY KEY (`id_reserva`),
INDEX `matricula_idx` (`matricula` ASC),
INDEX `ISBN_idx` (`ISBN` ASC),
CONSTRAINT `matricula`
FOREIGN KEY (`matricula`)
REFERENCES `mydb`.`usuario_cadastrado` (`matricula`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `ISBN`
FOREIGN KEY (`ISBN`)
REFERENCES `mydb`.`obra` (`ISBN`)
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;
I appreciate any kind of help.
Thanks.

Answer 1

You're reusing existing constraint names (id_administrador is already used as a constraint name in the table cadastro_usuario and CNPJ is used in the table exemplar), you'll have to give your constraints unique names (here I renamed them to cf_id_administrador/CF_CNPJ);
-- -----------------------------------------------------
-- Table `mydb`.`cadastro_fornecedor`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`cadastro_fornecedor` (
`id_cadastro` INT NOT NULL AUTO_INCREMENT,
`data` DATETIME NULL,
`id_administrador` INT NULL,
`CNPJ` VARCHAR(45) NULL,
PRIMARY KEY (`id_cadastro`),
INDEX `id_administrador_idx` (`id_administrador` ASC),
INDEX `CNPJ_idx` (`CNPJ` ASC),
CONSTRAINT `cf_id_administrador`
FOREIGN KEY (`id_administrador`)
REFERENCES `mydb`.`administrador` (`id_administrador`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `CF_CNPJ`
FOREIGN KEY (`CNPJ`)
REFERENCES `mydb`.`fornecedores` (`CNPJ`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;