1. 监控事例的等待 select event,sum(decode(wait_Time,0,0,1)) "Prev", sum(decode(wait_Time,0,1,0)) "Curr",count(*) "Tot" from v$session_Wait group by event order by 4; 2. 回滚段的争用情况 select name, waits, gets, waits/gets "Ratio"…
手动启动: [oracle@localhost ~]$ sqlplus SQL*Plus: Release 11.2.0.1.0 Production on Wed Mar 26 23:39:52 2014 Copyright (c) 1982, 2009, Oracle. All rights reserved. Enter user-name: sys as sysdba Enter password: Connected to an idle instance. SQL> startup…