Предупреждение: процедура создана с ошибками компиляции в pl / sql

Question

Я попробовал следующий код:

CREATE OR REPLACE  PROCEDURE test(x IN account.Accno%TYPE,y IN 
account.Balance%TYPE)
IS
    cur_balance account.Balance%TYPE(20);
BEGIN
    select Balance
    into cur_balance
    from Account
    where Accno = x;
    if cur_balance < y then
        dbms_output.put_line('The amount entered is more than the amount balance');
    else
        update Account
        set Balance =cur_balance-y
    where Accno = x;
    end if; 
    dbms_output.put_line('Money has been withdrawn successfully');
commit;
END;
/