DBA AWR System Wait Time Summary

Description
Categories: Enginatics
Repository: Github
Summary of database CPU vs. wait times and average active sessions for a specified time frame

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select
&instance_number
y.seconds/xxen_util.zero_to_null(sum(decode(y.status,'Total DB time',y.seconds)) over ())*100 percentage,
y.status,
xxen_util.time(y.seconds) time,
y.seconds,
y.seconds/y.total_seconds average_active_sessions
from
(
select
&instance_number
nvl(x.stat_name,'WAITING') status,
abs(sum(decode(x.stat_name,'ON CPU',-x.seconds,x.seconds))) seconds,
x.total_seconds
from
(
select distinct
&instance_number
dhstm.stat_name,
sum(case when dhstm.time_delta<0 then dhstm.time_micro else dhstm.time_delta end) over (partition by dhstm.stat_name &partition_by)/1000000 seconds,
(max(dhstm.end_interval_time) over (partition by dhstm.stat_name &partition_by)-min(dhstm.end_interval_time) over (partition by dhstm.stat_name &partition_by))*86400 total_seconds
from
(
select
dhstm.instance_number,
cast(dhs.end_interval_time as date) end_interval_time,
decode(dhstm.stat_name,'DB CPU','ON CPU','Total DB time') stat_name,
dhstm.value time_micro,
dhstm.value-lag(dhstm.value) over (partition by dhstm.dbid, dhstm.instance_number, dhstm.stat_name order by dhstm.snap_id) time_delta
from
dba_hist_snapshot dhs,
dba_hist_sys_time_model dhstm
where
1=1 and
dhstm.stat_name in ('DB CPU','DB time') and
dhs.dbid=dhstm.dbid and
dhs.instance_number=dhstm.instance_number and
dhs.snap_id=dhstm.snap_id
) dhstm
) x
where
x.seconds>0
group by
&instance_number
x.total_seconds,
rollup(x.stat_name)
) y
order by
seconds desc
Parameter Name SQL text Validation
Date From
dhs.end_interval_time>=xxen_util.server_time(fnd_date.displaydt_to_date(:date_from))-1/1440
LOV
Date To
dhs.begin_interval_time<=xxen_util.server_time(fnd_date.displaydt_to_date(:date_to))
LOV
Level of Detail
instance_number,
LOV
Request Id (Time Restriction)
(dhs.begin_interval_time<=(select fcr.actual_completion_date from fnd_concurrent_requests fcr where fcr.request_id=:request_id) and dhs.end_interval_time>=(select fcr.actual_start_date from fnd_concurrent_requests fcr where fcr.request_id=:request_id))
Number
Time Restriction
to_number(to_char(dhs.begin_interval_time,'HH24')) between 6 and 18 and to_char(dhs.begin_interval_time,'DAY') not in ('SATURDAY','SUNDAY')
LOV
Diagnostic Pack enabled
1=1
LOV
Container Data
dhs.dbid=(select vd.dbid from v$database vd)
LOV