1、统计游标：
select * from v$open_cursor where USER_NAME = 'TEST'
select count(sub.state) as fail_num from task ts inner join
select count(sub.state) as suc_num from task ts inner join s
select user_name from v$open_cursor
select * from v$session_connect_info
select count(*) from v$session_connect_info where suser='smp'
2、启动数据库：
su - oracle
sqlplus / as sysdba
shutdown immediate
startup force
启动LISTENER 和 sqlplus
执行：
bash-3.00$ $ORACLE_HOME/bin/lsnrctl start(启动监听)
执行：
bash-3.00$ $ORACLE_HOME/bin/sqlplus /NOLOG
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Jul 4 10:22:29 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect / as sysdba
Connected to an idle instance.
SQL> startup;
3、导入导出
导出：
exp username/pwd@hdmdb file=HC.dmp log=HC.log full=y
导入：
imp username/pwd@hdmdb file=HC.dmp log=HC.log full=y
4、==========创建数据库============
-- Create the user
create user HC
identified by "HC";
-- Grant/Revoke role privileges
grant connect to HC;
grant resource to HC;
-- Grant/Revoke system privileges
grant create procedure to HC;
grant create sequence to HC;
grant create session to HC;
grant create synonym to HC;
grant create table to HC;
grant create trigger to HC;
grant create view to HC;
grant debug any procedure to HC;
grant debug connect session to HC;
grant create tablespace to HC;
5、抓包：
snoop -o snoop09301512-od.cap -d ce5 host 192.168.1.123 and port 7001
6、强制释放oracle连接2009-04-01 20:10
sqlplus /nolog
打开sqlplus
connect system/bianqiwei@orcltns as sysdba
使用具有dba权限得用户登陆oracle
show parameter resource_limit
显示资源限定是否开启,value为true是开启,为false是关闭
alter system set resource_limit=true
如果未开启,则使用此命令开启资源限定功能
create profile profileName limit connect_time 60 idle_time 30
创建profile文件,profileName任意起,connect_time设置连接超过多少分钟后强制释放,idle_time设置连续不活动的会话超过多少分钟后强制释放
alter user oracleUser profile profileName
将profile文件作用于指定用户
7、删除orabm
$ sqlplus / as sysdba
SQL> drop user orabm cascade;
（通过开源工具orabm计算TPS值来测试服务器CPU性能可参见http://hi.baidu.com/edeed/blog/item/e79b8db1507d1c5d092302d8.html）
