标签：div ted des oca timestamp pga cat sql select
最消耗 PGA 的 sql_id：
select *
from (select instance_number, sql_id, max(pga_sum_mb) pga_max
from (select instance_number, sample_time, sql_id, round(sum(nvl(pga_allocated, 0))/1024/1024) pga_sum_mb
from dba_hist_active_sess_history
where sample_time between to_timestamp(‘&begin_timestamp‘, ‘yyyy/mm/dd hh24:mi‘) and to_timestamp(‘&end_timestamp‘, ‘yyyy/mm/dd hh24:mi‘)
group by instance_number, sample_time, sql_id)
group by instance_number, sql_id
order by pga_max desc)
where rownum <= 10;
最消耗临时段的 sql_id：
select *
from (select instance_number, sql_id, max(temp_sum_mb) temp_max
from (select instance_number, sample_time, sql_id, round(sum(nvl(temp_space_allocated, 0))/1024/1024) temp_sum_mb
from dba_hist_active_sess_history
where sample_time between to_timestamp(‘&begin_timestamp‘, ‘yyyy/mm/dd hh24:mi‘) and to_timestamp(‘&end_timestamp‘, ‘yyyy/mm/dd hh24:mi‘)
group by instance_number, sample_time, sql_id)
group by instance_number, sql_id
order by temp_max desc)
where rownum <= 10;
从 ASH 找到消耗 PGA 和 临时表空间 较多的 Top SQL_ID
标签：div ted des oca timestamp pga cat sql select
原文地址：https://www.cnblogs.com/muzisanshi/p/11957483.html
