sample_time分组活动会话趋势
分钟级别的活动会话分布
set linesize 260 pagesize 1000
alter session set nls_date_format=’yyyy-mm-dd hh24:mi:ss’;
select trunc(sample_time,’mi’),count(*)
from gv$active_session_history
where sample_time between
to_date(‘&date1’, ‘yyyy-mm-dd hh24:mi:ss’) and
to_date(‘&date2’, ‘yyyy-mm-dd hh24:mi:ss’)
and inst_id in (select instance_number from v$instance)
group by trunc(sample_time,’mi’)
order by trunc(sample_time,’mi’);
秒级别的活动会话分布
set linesize 260 pagesize 1000
alter session set nls_date_format=’yyyy-mm-dd hh24:mi:ss’;
select sample_time,sample_id,count(*)
from gv$active_session_history
where sample_time between
to_date(‘&date1’, ‘yyyy-mm-dd hh24:mi:ss’) and
to_date(‘&date2’, ‘yyyy-mm-dd hh24:mi:ss’)
and inst_id in (select instance_number from v$instance)
group by sample_time,sample_id
order by sample_time,sample_id;
