Task: Text to Code
Input (English): Step 1: find the staff_name, staff_id of Staff table.
Step 2: find the staff_name, staff_id of Staff table.
Step 3: show the rows that are in the results of step 1 but not in the results of step 2
Output (English): SELECT staff_name , staff_id FROM Staff EXCEPT SELECT staff_name , staff_id FROM Staff