having trouble with my database using workbench - mysql

Question

I am creating a test database to train with and am running into this problem -
"Schema Creation Failed: Can't create table 'db_2_5b129.tbluserassignment' (errno: 150): "
The code for the specific table is -
-- Table tblUserAssignment
CREATE TABLE IF NOT EXISTS `tblUserAssignment` (
`assignment_id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`user_id` INT NOT NULL,
`supervisor_id` INT NOT NULL,
`position_id` INT NOT NULL,
`department_id` INT NOT NULL,
`start_date` DATE NOT NULL,
`end_date` DATE NOT NULL,
`date_added` DATE NOT NULL,
`date_modified` DATETIME NOT NULL,
`date_deleted` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`assignment_id`),
INDEX `fk_tblUserAssignment_tblUserPhone1_idx` (`user_id` ASC),
INDEX `fk_tblUserAssignment_tblUserPositions1_idx` (`position_id` ASC),
CONSTRAINT `fk_tblUserAssignment_tblUserPhone1`
FOREIGN KEY (`user_id`)
REFERENCES `tblUserPhone` (`user_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_tblUserAssignment_tblUserPositions1`
FOREIGN KEY (`position_id`)
REFERENCES `tblUserPositions` (`position_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
Can someone look it over and point me in the right direction?

Answer 1

problem is in differences between forign fields type
tblUserPositions.position_id INT UNSIGNED NOT NULL AUTO_INCREMEN
and
tblUserAssignment.position_id INT NOT NULL,`
EDIT 1
see this Use Composite Primary Key as Foreign Key
EDIT 2
this one tested & works fine
CREATE TABLE `tbluserphone` (
`contact_information_id` INT(10) UNSIGNED NOT NULL,
`user_id` INT(11) NOT NULL,
`phone_number` VARCHAR(20) NOT NULL,
`phone_type_id` INT(11) NOT NULL,
`date_added` DATETIME NOT NULL,
`date_modified` DATETIME NOT NULL,
`date_deleted` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`contact_information_id`, `user_id`)
)
COLLATE='latin1_swedish_ci'
ENGINE=InnoDB;
CREATE TABLE `tbluserassignment` (
`assignment_id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
`contact_information_id` INT(10) UNSIGNED NOT NULL,
`user_id` INT(11) NOT NULL,
`supervisor_id` INT(11) NOT NULL,
`position_id` INT(10) UNSIGNED NOT NULL,
`department_id` INT(11) NOT NULL,
`start_date` DATE NOT NULL,
`end_date` DATE NOT NULL,
`date_added` DATE NOT NULL,
`date_modified` DATETIME NOT NULL,
`date_deleted` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`assignment_id`),
INDEX `fk_tblUserAssignment_tblUserPhone1_idx` (`user_id`),
INDEX `fk_tblUserAssignment_tblUserPositions1_idx` (`position_id`),
INDEX `contact` (`contact_information_id`),
CONSTRAINT `FK_tbluserassignment_tbluserpositions`
FOREIGN KEY (`position_id`)
REFERENCES `tbluserpositions` (`position_id`) ON UPDATE NO ACTION ON DELETE NO ACTION,
CONSTRAINT tbluserassignment_fkz1
FOREIGN KEY (contact_information_id, user_id)
REFERENCES tbluserphone (contact_information_id, user_id)
)
COLLATE='latin1_swedish_ci'
ENGINE=InnoDB;
(contact_information_id, user_id) - fields should goes same way, like in primary key difinition