俗话说用户是上帝，他们有时候提出一个问题非常的简单，就只需要一句话，一分钟就完事了，但是拿到我们DBA来说，可能至少得半个小时甚至半个月才能满足他的一句话，有没有更好更快的办法呢，我告诉大家这是有的；
我就拿一个例子来说，用户通常都会为了维护简单，需要数据库自动随系统启动，一句非常简单的话，但是拿给DBA来说至少得多花半个小时的时间来配置实现这个功能。那么今天你看完这篇文档之后，可以在他的话还没有说完就可以完成自启动的配置，非常简单。
一、配置自动
1、添加启动项
[root@db01 ~]# cat >> /etc/rc.d/rc.local <<EOF
su - Oracle -c "lsnrctl start"
su - oracle -c "sqlplus sys/oracle as sysdba @/home/oracle/.script/.startup"
su - oracle -c "emctl start dbconsole"
EOF
2、创建并编辑启动文件
[root@db01 ~]#su - oracle
[root@db01 ~]#mkdir -p /home/oracle/.script/
[root@db01 ~]# cat > /home/oracle/.script/.startup <<EOF
startup;
alter system register;
exit 0
EOF
二、重启验证:
三、确定数据库和EM以及监听是否都已经起来
###监听状态
[oracle@db01 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 03-OCT-2014 07:26:22
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 03-OCT-2014 07:13:54
Uptime 0 days 0 hr. 12 min. 28 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /DBSoft/Product/11.2.3/db_1/network/admin/listener.ora
Listener Log File /DBSoft/diag/tnslsnr/db01/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db01)(PORT=1521)))
Services Summary...
Service "woo" has 1 instance(s).
Instance "woo", status READY, has 1 handler(s) for this service...
Service "wooXDB" has 1 instance(s).
Instance "woo", status READY, has 1 handler(s) for this service...
The command completed successfully
###数据库状态
SQL> select instance_name,host_name,status from v$instance;
INSTANCE_N HOST_NAME STATUS
---------- ---------- ------------
woo db01 OPEN
###EM状态
[oracle@db01 ~]$ emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation. All rights reserved.
https://db01:1158/em/console/aboutApplication
Oracle Enterprise Manager 11g is running.
------------------------------------------------------------------
Logs are generated in directory /DBSoft/Product/11.2.3/db_1/db01_woo/sysman/log
至此我们已经确定，这样也可以将数据库配置为自动启动，且比Oralce推荐的老方法更为简单，老方法见如下链接：
Oracle 11g 在RedHat Linux 5.8_x64平台的安装手册
在CentOS 6.4下安装Oracle 11gR2(x64)