While there is insufficient information provided (a couple of table snippets), you may consider and experiment with the snippet below to get you started.
SELECT ids.id, f1.value AS value1, f2.value AS value2, f3.value AS value3 FROM ( SELECT DISTINCT id FROM foo ) AS ids LEFT JOIN foo f1 ON f1.id = ids.id AND f1.order = 1 LEFT JOIN foo f2 ON f2.id = ids.id AND f2.order = 2 LEFT JOIN foo f3 ON f3.id = ids.id AND f3.order = 3 ORDER BY ids.id; ----- Reply message ----- From: "Claudio Adriano Guarracino" <elni...@yahoo.com> Date: Thu, May 5, 2011 5:18 pm Subject: [SQL] Select and merge rows? To: <pgsql-sql@postgresql.org> Hello! I have a doubt about a query that I tried to do, but I cant...... This is the scenario: I have a table, with this rows: order ID value ---------------------- 1 1000 3 2 1000 5 3 1000 6 1 1001 1 2 1001 2 1 1002 4 2 1002 4 I need to get this table, divided by ID, like this: id value1 value2 value3 -------------------------------- 1000 3 5 6 1001 1 2 1002 1 2 How I can do this? I tried with cursors and view, but i can't.... Any help is welcome! Thanks in advance! Regards,
