Error 1005: Can't create table 'mydb.course_offered' (errno: 150) (no replies)

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Executing SQL script in server

ERROR: Error 1005: Can't create table 'mydb.course_offered' (errno: 150)







-- -----------------------------------------------------

-- Table `mydb`.`Course_Offered`

-- -----------------------------------------------------

CREATE TABLE IF NOT EXISTS `mydb`.`Course_Offered` (

`Year` INT NOT NULL ,

`Trimester` INT NOT NULL ,

`Course_ID` VARCHAR(10) NOT NULL ,

`Section` INT NOT NULL ,

`Instructor_ID` CHAR(10) NOT NULL COMMENT 'FK from instructors table' ,

`Room` VARCHAR(10) NULL ,

`Class_Capacity` INT NULL ,

`Grade_A` INT NULL ,

`Grade_B_P` INT NULL ,

`Grade_B` INT NULL ,

`Grade_C_P` INT NULL ,

`Grade_C` INT NULL ,

`Grade_D_P` INT NULL ,

`Grade_D` INT NULL ,

`Grade_W` INT NULL ,

`Grade_S` INT NULL ,

`Grade_U` INT NULL ,

`User_ID` INT NULL ,

`Last_Updated` DATETIME NULL ,

`Status` CHAR(1) NULL ,

PRIMARY KEY (`Year`, `Trimester`, `Course_ID`, `Section`) ,

INDEX `fk_Course Offered_Instructors1` (`Instructor_ID` ASC) ,

INDEX `fk_Course Offered_Courses3` (`Course_ID` ASC) ,

INDEX `fk_Course Offered_Year Trimester1` (`Year` ASC, `Trimester` ASC) ,

CONSTRAINT `fk_Course Offered_Instructors1`

FOREIGN KEY (`Instructor_ID` )

REFERENCES `mydb`.`Instructors` (`Instructor_ID` )

ON DELETE NO ACTION

ON UPDATE NO ACTION,

CONSTRAINT `fk_Course Offered_Courses3`

FOREIGN KEY (`Course_ID` )

REFERENCES `mydb`.`Courses` (`Course_ID` )

ON DELETE NO ACTION

ON UPDATE NO ACTION,

CONSTRAINT `fk_Course Offered_Year Trimester1`

FOREIGN KEY (`Year` , `Trimester` )

REFERENCES `mydb`.`Year Trimester` (`year` , `Trimester` )

ON DELETE NO ACTION

ON UPDATE NO ACTION)

ENGINE = InnoDB



SQL script execution finished: statements: 13 succeeded, 1 failed