From: | Russell Keane <Russell(dot)Keane(at)inps(dot)co(dot)uk> |
---|---|
To: | Steve Clark <sclark(at)netwolves(dot)com>, pgsql <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: limit based on count(*) |
Date: | 2013-02-22 16:08:52 |
Message-ID: | 8D0E5D045E36124A8F1DDDB463D548557D1618F4D3@mxsvr1.is.inps.co.uk |
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Lists: | pgsql-general |
> Hello List,
>
> I have a query that counts how many time an event occurs in our event_log these are grouped by the serial number of the device that created the event. I would like to show only the rows where the number of events exceeds some threshold.
>
> simplified query:
> select serial_no, count(*) as "restarts" from event_log where event_mesg ilike 'system sta%' and event_date > current_date - 7 group by serial_no order by restarts;
>
> So what I would like to see is only the serial_nos that had more than X restarts.
>
> Any ideas would be appreciated.
>
> --
> Stephen Clark
Could you not do:
Select * from
(
select serial_no, count(*) as "restarts" from event_log where event_mesg ilike 'system sta%' and event_date > current_date - 7 group by serial_no order by restarts
)
Where "restarts" > X;
Regards,
Russell Keane
INPS
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