Try substituting the SELECT count(c) as qtd_client,count(cm) as qtd_computers
by SELECT count( DISTINCT c.cliente_id) as qtd_client,count(/* put here the primary key of the computer table */ ) as qtd_computers Then tell me if it output what you want Best, Oliveiros ----- Original Message ----- From: Another Trad To: pgsql-sql@postgresql.org Sent: Wednesday, November 18, 2009 4:55 PM Subject: [SQL] need nelp with aggregate functions The DB structure is in attachment. I with the number of clients and the number of computers that have processors with "manufacturer" = "INTEL" and "speed" = "2GB" I am trying: select count(c) as qtd_client, count(cm) as qtd_computers from cliente c inner JOIN computer cm on (c.cliente_id = cm.cliente_id) inner join processor p on (cm.processor_id = p.processor_id)inner join speed s on (s.speed_id = p.speed_id)INNER JOIN manufacturer m on (p.manufacturer_id=m.manufacturer_id) where m.manufacturer = 'INTEL'and s.speed = '2GB'but is not working anyone can help me? ------------------------------------------------------------------------------ -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
