Re: sql developer daily ash statistics chart query

I've not checked the Report right now - is it dividing an hour into 10 parts?

that's my guess,
 Martin

On Wed, Nov 9, 2011 at 01:01, LS Cheng <exriscer_at_gmail.com> wrote:
> Hi
> In SQL Developer there are few AWR/ASH report available, one of them is
> daily ash statistics chart and made up by following query
>
> select to_char(trunc((sample_time),'HH'),'HH24:MI'), state, count(*)/360
> from
>  (select   sample_time,   sample_id
>  ,  CASE  WHEN session_state = 'ON CPU' THEN 'CPU'
>           WHEN session_state = 'WAITING' AND wait_class IN ('User I/O')
> THEN 'IO'
>           WHEN session_state = 'WAITING' AND wait_class IN ('Cluster')
> THEN 'CLUSTER'
>           ELSE 'WAIT' END state
>    from DBA_HIST_ACTIVE_SESS_HISTORY
>    where   session_type IN ( 'FOREGROUND')
>    and sample_time  between trunc(sysdate,'HH') - 25/24 and
> trunc(sysdate,'HH') - 1/24  )
> group by trunc((sample_time),'HH'), state order by trunc((sample_time),'HH')
>
> Does anyone know why we divide count(*) by 360?
>
> Thanks

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