Hi, I'm trying to retrieve all meter_id from table meter, and for meter_id without amount, I'd like it to show nothing, 'null'. I've used right join here but it's not giving me my desired result. Is there another way to do this? Here's the query I'm trying.
Thanks in advance! select m.meter_id, mp.meter_id, sum(amount_in_cents) as am from meter m right join transaction_mpark mp on (m.meter_id = mp.meter_id) where date_time between '2009-09-28 00:00:00' and '2009-10-04 23:59:59' group by m.meter_id, mp.meter_id order by m.meter_id -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
