declare
v_access_level number;
begin
select e.employee_level_id into v_access_level
from EMP e
where lower(e.ou_name) = lower ('&USER.');
if v_access_level in (1,4) then
return true;
else
return false;
end if;
EXCEPTION
WHEN NO_DATA_FOUND
THEN
RETURN false;
end;
