1|配置用户环境

vi /home/oracle/.bash_profile #在最后添加以下代码

export ORACLE_BASE=/data/oracle #oracle数据库安装目录

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 #oracle数据库路径

export ORACLE_SID=orcl #oracle启动数据库实例名

export ORACLE_TERM=xterm #xterm窗口模式安装

export PATH=$ORACLE_HOME/bin:/usr/sbin:$PATH #添加系统环境变量

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib #添加系统环境变量

export LANG=C #防止安装过程出现乱码

export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK  #设置Oracle客户端字符集，必须与Oracle安装时设置的字符集保持一致，如：ZHS16GBK，否则出现数据导入导出中文乱码问题


2|netca启动不了：
切换到root下，运行xhost +



3|启动监听失败：
[oracle@oracle ~]$ lsnrctl start since01

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 09-JUN-2014 21:24:23

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /data/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /data/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /data/oracle/diag/tnslsnr/oracle/since01/alert/log.xml
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=202.102.110.203)(PORT=1529)))
TNS-12545: Connect failed because target host or object does not exist
 TNS-12560: TNS:protocol adapter error
  TNS-00515: Connect failed because target host or object does not exist
   Linux Error: 99: Cannot assign requested address

Listener failed to start. See the error message(s) above...
修改配置文件：/data/oracle/product/11.2.0/db_1/network/admin/listener.ora，将ip修改为本地地址或者，127.0.0.1

4|enterprise manager configuration failed due to the following error
配置dbca的时候不要勾选企业配置