Query using Group by - help needed

Question

I am having a query as follows:
select id_nbr, stop_nbr, street || city || state, count(sub_stop_nbr)
from details where created_date = ' 22-Jul-08';
As group by clause is missing it is giving errors.
But when I add group by to this query, I have to add all selected values.
How can I add the concatenatd values here.
Is there any other way rather than writing as :
(select id_nbr, stop_nbr, street || city || state, count(sub_stop_nbr)
from details where created_date = ' 22-Jul-08'
group by id_nbr, stop_nbr, street || city || state)

Answer 1

so where is the problem in writing:
select id_nbr, stop_nbr, street || city || state, count(sub_stop_nbr)
from details
where created_date = ' 22-Jul-08'
group by id_nbr, stop_nbr, street || city || state
????