MySQL 1005 Error - What's wrong with the query? - mysql

Question

I'm unable to see the issue with this CREATE TABLE sentences. I've double checked but can't find the error.
-- -----------------------------------------------------
-- Table `agentes`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `agentes` (
`id` INT(11) NOT NULL AUTO_INCREMENT ,
`codAgente` VARCHAR(8) NOT NULL ,
`clave` VARCHAR(8) NOT NULL ,
`nombre` VARCHAR(50) NOT NULL ,
`apellido1` VARCHAR(50) NOT NULL ,
`apellido2` VARCHAR(50) NOT NULL ,
`email` VARCHAR(100) NOT NULL ,
`usuarioDA` VARCHAR(45) NULL ,
`passDA` VARCHAR(100) NULL ,
PRIMARY KEY (`id`) )
ENGINE = InnoDB
COLLATE = latin1_spanish_ci;
-- -----------------------------------------------------
-- Table `cola`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `colas` (
`idCola` INT NOT NULL AUTO_INCREMENT ,
`cliente` INT NOT NULL ,
`nombre` VARCHAR(45) NOT NULL ,
PRIMARY KEY (`idCola`) ,
INDEX `fk_colas_clientes1` (`cliente` ASC) ,
CONSTRAINT `fk_colas_clientes1`
FOREIGN KEY (`cliente` )
REFERENCES `clientes` (`idCliente` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `relColaExt`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `relColaExt` (
`id` INT NOT NULL AUTO_INCREMENT ,
`codAgente` VARCHAR(8) NOT NULL ,
`cola` VARCHAR(45) NOT NULL ,
`prioridad` INT NOT NULL ,
PRIMARY KEY (`id`) ,
UNIQUE INDEX `id` (`id` ASC) ,
INDEX `fk_relColaExt_agentes1` (`codAgente` ASC) ,
INDEX `fk_relColaExt_colas1` (`cola` ASC) ,
CONSTRAINT `fk_relColaExt_agentes1`
FOREIGN KEY (`codAgente` )
REFERENCES `agentes` (`codAgente` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_relColaExt_colas1`
FOREIGN KEY (`cola` )
REFERENCES `colas` (`nombre` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
It throws #1005 - Can't create table './centralita/relColaExt.frm' (errno: 150) creating the relColaExt table.
It's a Foreign Key issue but I'm not able to see what's wrong. Can someone help me, please?

Answer 1

According to this comment on MySQL manual page on Foreign keys, it may be due to different encoding of the VARCHAR columns. In table agentes you defined a collation but in relColaExt you did not.
Try using the same collation on every table (by defining it or by letting the default kick in).