From: | Aarni Ruuhimäki <aarni(at)kymi(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Read count ? |
Date: | 2005-02-24 15:17:14 |
Message-ID: | 200502241717.14648.aarni@kymi.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
Hi,
Could someone please give a hint on how to query the following neatly ?
Get news from a news table that belong to a particular account, get segment
name from segments table for each news item and read count from read history
table that gets a news_id and timestamp insert every time the news is read.
Display everything by news count, most read news first ?
news_id 4, news_header, segment_name x, read 10 times
news_id 2, news_header, segment_name y, read 8 times
news_id 1, news_header, segment_name x, read 7 times
news_id 3, news_header, segment_name x, read 0 times
news_table:
news_id, account_id, segment_id, news_header, ...
segments_table:
segment_id, account_id, segment_name
read_history_table:
history_id, news_id, timestamp
TIA,
Aarni
--------------
This is a bugfree broadcast to you
from **Kmail**
on **Fedora Core 2** linux system
--------------
From | Date | Subject | |
---|---|---|---|
Next Message | Tom Lane | 2005-02-24 15:32:16 | Re: Advanced SELECT |
Previous Message | mauro | 2005-02-24 15:04:04 | Re: Postgres 8 - problem: invalid input syntax for integer |