MYSQL Error Code: 1005. Can't create table `db_xcruz`.`users` (errno: 150 "Foreign key constraint is wrongly forms")
[英]MYSQL Error Code: 1005. Can't create table `db_xcruz`.`users` (errno: 150 "Foreign key constraint is incorrectly formed")
问题描述
I'm having the #1005 error code in MySQL workbench and errno 150:
我在 MySQL 工作台和 errno 150 中有 #1005 错误代码：
MYSQL Error Code: 1005. Can't create table db_xcruz . MYSQL 错误代码：1005。无法创建表db_xcruz 。 users (errno: 150 "Foreign key constraint is incorrectly formed") users (errno: 150 "外键约束格式不正确")
I don't know what to do, i tried everything.我不知道该怎么办，我什么都试过了。
Here's the code这是代码
###Database creation###
CREATE DATABASE IF NOT EXISTS `DB_XCRUZ`;
USE `DB_XCRUZ`;
###Tables creation###
/*Users - Table*/
DROP TABLE IF EXISTS `USERS`;
CREATE TABLE `USERS`(
`ID` INT NOT NULL,
`FIRST_NAME` VARCHAR(100) DEFAULT NULL,
`LAST_NAME` VARCHAR(100) DEFAULT NULL,
`EMAIL` VARCHAR(320) DEFAULT NULL,
`CATEGORY_ID` SMALLINT(3) NOT NULL,
`CART_ID` INT NOT NULL,
PRIMARY KEY (`ID`),
FOREIGN KEY (`CATEGORY_ID`) REFERENCES USER_CATEGORIES(`ID`) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY (`CART_ID`) REFERENCES CARTS(`ID`) ON UPDATE CASCADE ON DELETE CASCADE
);
/*User categories - Table*/
DROP TABLE IF EXISTS `USER_CATEGORIES`;
CREATE TABLE `USER_CATEGORIES`(
`ID` SMALLINT(3) NOT NULL,
`NAME` VARCHAR(80) DEFAULT NULL,
PRIMARY KEY (`ID`)
);
/*Carts - Table*/
DROP TABLE IF EXISTS `CARTS`;
CREATE TABLE `CARTS`(
`ID` INT NOT NULL,
`SUBTOTAL` DECIMAL(11,2) DEFAULT NULL,
`TOTAL` DECIMAL(11,2) DEFAULT NULL,
PRIMARY KEY (`ID`)
);
1 个解决方案
解决方案1
1 已采纳 2022-06-29 01:13:13
create your foreign tables first before creating the user table.在创建user表之前先创建foreign表。
###Database creation###
CREATE DATABASE IF NOT EXISTS `DB_XCRUZ`;
USE `DB_XCRUZ`;
###Tables creation###
/*User categories - Table*/
DROP TABLE IF EXISTS `USER_CATEGORIES`;
CREATE TABLE `USER_CATEGORIES`(
`ID` SMALLINT(3) NOT NULL,
`NAME` VARCHAR(80) DEFAULT NULL,
PRIMARY KEY (`ID`)
);
/*Carts - Table*/
DROP TABLE IF EXISTS `CARTS`;
CREATE TABLE `CARTS`(
`ID` INT NOT NULL,
`SUBTOTAL` DECIMAL(11,2) DEFAULT NULL,
`TOTAL` DECIMAL(11,2) DEFAULT NULL,
PRIMARY KEY (`ID`)
);
/*Users - Table*/
DROP TABLE IF EXISTS `USERS`;
CREATE TABLE `USERS`(
`ID` INT NOT NULL,
`FIRST_NAME` VARCHAR(100) DEFAULT NULL,
`LAST_NAME` VARCHAR(100) DEFAULT NULL,
`EMAIL` VARCHAR(320) DEFAULT NULL,
`CATEGORY_ID` SMALLINT(3) NOT NULL,
`CART_ID` INT NOT NULL,
PRIMARY KEY (`ID`),
FOREIGN KEY (`CATEGORY_ID`) REFERENCES USER_CATEGORIES(`ID`) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY (`CART_ID`) REFERENCES CARTS(`ID`) ON UPDATE CASCADE ON DELETE CASCADE
);
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