From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
---|---|
To: | pgsql-sql(at)postgreSQL(dot)org |
Subject: | Help with query |
Date: | 1999-03-25 03:13:06 |
Message-ID: | Pine.GSO.3.96.SK.990325060718.16970K-100000@ra |
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Lists: | pgsql-sql |
Hi,
I have query
select source,max(up_date),count(*) from flats group by source
which gets me
source | max|count
--------------------------+----------+-----
where source is a company name, max(up_date) - the last update,
count - total number of items for giver company
but I need
source | max| count_updates
--------------------------+----------+-----
where count_updates is a number of *last updated* items for given company ?
How I can do this with SQL ?
Best regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
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