--1、檢視耗時SQL

select *

from (select v.sql_id,

v.child_number,

v.sql_text,

v.elapsed_time,

v.cpu_time,

v.disk_reads,

rank() over(order by v.elapsed_time desc) elapsed_rank

from v$sql v) a

where elapsed_rank <= 10;

-- 2.檢視CPU消耗時間最多的前10條SQL語句

select *

from (select v.sql_id,

rank() over(order by v.cpu_time desc) elapsed_rank

from v$sql v) a

where elapsed_rank <= 10;

--3.檢視消耗磁碟讀取最多的前10條SQL語句

select *

from (select v.sql_id,

rank() over(order by v.disk_reads desc) elapsed_rank

from v$sql v) a

where elapsed_rank <= 10;