Read count ?

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
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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
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