ORDER way week start from MONDAY [Mon...Sun]

Question

Display the last name, hire date, and day of week on which the employee hire.
Order the result by the day of week starting with Monday.
(eg. Monday,Tuesday……Saturday,Sunday)
I have tried this using following statement…..But is this right way!? Any other command availabe for same.
SELECT last_name, hire_date, TO_CHAR(hire_date,'Day')
FROM employees
ORDER BY TO_CHAR(hire_date -1,'d') ;
[FROM  ORACLE University Introduction to Oracle9i: SQL Vol 1, Chapter 3, Q.10, PAGE NO 3-64]

Answer 1

i think i will also works
decode(to_char(hiredate,'d'),1,null,to_char(hiredate,'d'))This is very nls-dependant:
begin
  for cTerr in (select value from v$nls_valid_values where parameter = 'TERRITORY') loop
    begin
      dbms_session.set_nls('nls_territory', ''''||cTerr.value||'''');
      if to_char(to_date(7,'j'), 'd') not in (2) then -- Monday
        dbms_output.put_line(cTerr.value || '=' || to_char(to_date(7,'j'), 'd'));
      end if;
    exception
      when others then
        dbms_output.put_line(cTerr.value || '=?');
    end;
  end loop;
end;
/Look for example at BANGLADESH