Can't create table (errno 150) Openshift's phpmyadmin [duplicate] - sql

Question

This question already has answers here:
MySQL Creating tables with Foreign Keys giving errno: 150
(20 answers)
Closed 8 years ago.
Here's my schema:
-- Table 'users'
CREATE TABLE IF NOT EXISTS `users` (
`ID` bigint(20) NOT NULL AUTO_INCREMENT,
`name` varchar(50) COLLATE utf8_bin NOT NULL,
`password` varchar(100) COLLATE utf8_bin NOT NULL,
`registrationDate` datetime NOT NULL,
PRIMARY KEY (`ID`),
UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1;
CREATE TABLE IF NOT EXISTS tasks (
id bigint(20) NOT NULL AUTO_INCREMENT,
description TEXT,
title TEXT,
type TEXT,
createdDate DATETIME NOT NULL,
finishedDate DATETIME,
user_id bigint(20) NOT NULL,
PRIMARY KEY (id),
CONSTRAINT user_fk FOREIGN KEY (user_id) REFERENCES USERS(ID) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1;
I keep getting errno 150 when I try creating "tasks" table.

Answer 1

Looks like phpmyadmin on openshift is case sensitive, if you dig into the error you get this:
LATEST FOREIGN KEY ERROR
------------------------
140827 10:52:57 Error in foreign key constraint of table testing/tasks:
FOREIGN KEY (user_id) REFERENCES USERS(ID) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1:
Cannot resolve table name close to:
(ID) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1
In the below code, notice that i changed USERS to users in the second table creation code after REFERENCES.
Looks like this code works:
CREATE TABLE IF NOT EXISTS `users` (
`ID` bigint(20) NOT NULL AUTO_INCREMENT,
`name` varchar(50) COLLATE utf8_bin NOT NULL,
`password` varchar(100) COLLATE utf8_bin NOT NULL,
`registrationDate` datetime NOT NULL,
PRIMARY KEY (`ID`),
UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1;
CREATE TABLE IF NOT EXISTS tasks (
id bigint(20) NOT NULL AUTO_INCREMENT,
description TEXT,
title TEXT,
type TEXT,
createdDate DATETIME NOT NULL,
finishedDate DATETIME,
user_id bigint(20) NOT NULL,
PRIMARY KEY (id),
CONSTRAINT user_fk FOREIGN KEY (user_id) REFERENCES users(ID) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1;