As an exercise, manually enter the first row of data in the classes table. Double click on classes and press control + enter. Press on the pencil/edit at the bottom of the screen. Click on the emp_number and enter 1 (as that is a valid employee number from the employee table for Doug Blansit who took the BBF class). Enter 2004-04-06 in the date field and BBF in the classname. Click the checkmark for Apply Changes.