kandari85的专栏

powerdesigner连接oracle数据库

Oracle常用性能监控SQL语句--查看表锁 select * from sys.v_$sqlarea where disk_reads>100--监控事例的等待 select event,sum(decode(wait_Time,0,0,1)) "Prev", sum(decode(wait_Time,0,1,0)) "Curr",count(*) "Tot" from v$session_Wait group by event order by 4 --回滚段的争用情况select name, wai