Hello Mr. Sandeep Bandela, I have gone through your scenario and come up with the following solution. SELECT USER_ID, CREATE_TIMESTAMP::DATE, SUM(AMOUNT)
FROM ORDERS
GROUP BY USER_ID, CREATE_TIMESTAMP
ORDER BY USER_ID, CREATE_TIMESTAMP; Maybe you need to do little modification on the query to get what you want. Best Regards James Kitambara Database Administrator
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--- On Wed, 24/6/09, Sandeep <gibsosmat@gmail.com> wrote:
From: Sandeep <gibsosmat@gmail.com>
Subject: [SQL] Bucketing Row Data in columns
To: pgsql-sql@postgresql.org
Date: Wednesday, 24 June, 2009, 5:39 PM
Hi all, I need help on creating a sql, not a problem even if its pl/sql I have orders table schema is as follow orders(order_id,user_id, create_timestamp, amount) and I want to generate a report like for the past 3 days bucketing purchases i.e SUM(amount) every day in columns i.e result will be having these columns. (user_id, amount_day1, amount_day2, amount_day3) ex: am leaving order_id assume they are auto incrementing and unique, date format dd/mm/yyyy (user_id, create_timestamp, amount) (user1, 01/01/2009,100) (user1, 01/01/2009,100) (user2, 01/01/2009,100) (user2, 02/01/2009,100) (user2, 02/01/2009,100) (user1, 02/01/2009,100) (user2, 03/01/2009,100) (user2, 03/01/2009,100) (user3, 03/01/2009,100) result (user_id, amount_day1, amount_day2, amount_day3) (user1, 200, 200, 0) (user2, 100, 200, 200) (user3, 0, 0, 100) hope you guys got what I am trying to generate through sql. I could get this data in each row, but I want it in columns. Can anyone help me on this? lets assume the buckets are fixed i.e 3 only. but I wish to get them unlimited i.e day 1 to day 20.
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