2005年5月17日
监控数据库性能的sql
摘要： 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, wa... 阅读全文
posted @ 2005-05-17 20:44 toddzhuang 阅读(637) 评论(0) 推荐(0) 编辑