【脚本内容】

在发现Oracle进程大量消耗CPU后，可以通过如下SQL获取服务器进程内正在执行的语句。

显示按CPU统计的顶级SQL。

select substr(sql_text,1,500) "SQL",
 (cpu_time/1000000) "CPU_Seconds",
 disk_reads "Disk_Reads",
 buffer_gets "Buffer_Gets",
 executions "Executions",
 case when rows_processed = 0 then null
 else round((buffer_gets/nvl(replace(rows_processed,0,1),1))) 
 end "Buffer_gets/rows_proc",
 round((buffer_gets/nvl(replace(executions,0,1),1))) "Buffer_gets/executions",
 (elapsed_time/1000000) "Elapsed_Seconds",module "Module"
from gv$sql s
order by cpu_time desc nulls last;

【截图如下】