常用监控SQL

1.---监控等待事件

select SESSION_ID,NAME,P1,P2,P3,WAIT_TIME,CURRENT_OBJ#,CURRENT_FILE#,CURRENT_BLOCK#

          from v$active_session_history ash, v$event_name enm

          where ash.event#=enm.event#

2.查看当前运行sql

select a.sample_id,

       a.session_id,

       a.sample_time,

       a.sql_id,

       a.event,

       a.blocking_session,

       b.sql_text

  from v$active_session_history a, v$sqlarea b

 where a.sql_id = b.sql_id