#1005 - 没有 puedo crear tabla `blog`.`carros`（错误：150“外键约束格式不正确”）

Posted 2023-02-25

【中文标题】#1005 - 没有 puedo crear tabla `blog`.`carros`（错误：150“外键约束格式不正确”）

【英文标题】：#1005 - No puedo crear tabla `blog`.`carros` (Error: 150 "Foreign key constraint is incorrectly formed")

【发布时间】：2019-05-02 05:15:30

【问题描述】：

USE blog;

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";

CREATE TABLE usuarios (
    id INT NOT NULL UNIQUE AUTO_INCREMENT,
    nombre VARCHAR(25) NOT NULL UNIQUE,
    email VARCHAR(255) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    fecha_registro DATETIME NOT NULL,
    activo TINYINT NOT NULL,
    PRIMARY KEY(id)
);


CREATE TABLE marcas (
  marca_id int(100) NOT NULL AUTO_INCREMENT,
  marca_titulo text NOT NULL,
   PRIMARY KEY (marca_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


CREATE TABLE carros (
  c_id INT(10) NOT NULL,
  p_id INT NOT NULL,
  add_ip varchar(250) NOT NULL,
  usuario_id INT NOT NULL,
  cantidad int(10) NOT NULL,
  PRIMARY KEY(c_id),
    FOREIGN KEY(p_id)
            REFERENCES productos(producto_id)
            ON UPDATE CASCADE
            ON DELETE RESTRICT
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

CREATE TABLE categorias (
  cat_id int(100) NOT NULL AUTO_INCREMENT,
  cat_titulo text NOT NULL,
   PRIMARY KEY (cat_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


CREATE TABLE orders (
  `order_id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NOT NULL,
  `product_id` int(11) NOT NULL,
  `qty` int(11) NOT NULL,
  `trx_id` varchar(255) NOT NULL,
  `p_status` varchar(20) NOT NULL,
  PRIMARY KEY (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


CREATE TABLE productos (
  producto_id INT NOT NULL AUTO_INCREMENT,
  p_cat INT(100) NOT NULL,
  p_marca INT(100) NOT NULL,
  p_titulo varchar(255) NOT NULL,
  p_precio int(100) NOT NULL,
  p_desc text NOT NULL,
  p_imagen LONGBLOB,
  p_claves text NOT NULL,
   PRIMARY KEY (producto_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

【问题讨论】：

为什么人们投票不喜欢并且不提供帮助？

【参考方案1】：

切换创建脚本的顺序，以便首先创建 productos 表：

USE blog;

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";

CREATE TABLE usuarios (
    id INT NOT NULL UNIQUE AUTO_INCREMENT,
    nombre VARCHAR(25) NOT NULL UNIQUE,
    email VARCHAR(255) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    fecha_registro DATETIME NOT NULL,
    activo TINYINT NOT NULL,
    PRIMARY KEY(id)
);


CREATE TABLE marcas (
  marca_id int(100) NOT NULL AUTO_INCREMENT,
  marca_titulo text NOT NULL,
   PRIMARY KEY (marca_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

CREATE TABLE productos (
  producto_id INT NOT NULL AUTO_INCREMENT,
  p_cat INT(100) NOT NULL,
  p_marca INT(100) NOT NULL,
  p_titulo varchar(255) NOT NULL,
  p_precio int(100) NOT NULL,
  p_desc text NOT NULL,
  p_imagen LONGBLOB,
  p_claves text NOT NULL,
   PRIMARY KEY (producto_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


CREATE TABLE carros (
  c_id INT(10) NOT NULL,
  p_id INT NOT NULL,
  add_ip varchar(250) NOT NULL,
  usuario_id INT NOT NULL,
  cantidad int(10) NOT NULL,
  PRIMARY KEY(c_id),
    FOREIGN KEY(p_id)
        REFERENCES productos(producto_id)
        ON UPDATE CASCADE
        ON DELETE RESTRICT
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

CREATE TABLE categorias (
  cat_id int(100) NOT NULL AUTO_INCREMENT,
  cat_titulo text NOT NULL,
   PRIMARY KEY (cat_id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


CREATE TABLE orders (
  `order_id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NOT NULL,
  `product_id` int(11) NOT NULL,
  `qty` int(11) NOT NULL,
  `trx_id` varchar(255) NOT NULL,
  `p_status` varchar(20) NOT NULL,
  PRIMARY KEY (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

【讨论】：

非常感谢！你救了我！

没问题。很高兴为您提供帮助