SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory

今天登录一台服务器用roote用户登录的,在切换到oracle用户，执行sqlplus sys/ as sysdba进入数据库提示如下错误：

SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory

在/home/oracle目录下查看文件.bash_profile，它是隐藏文件。

$ cat .bash_profile # .bash_profile# Get the aliases and functionsif [ -f ~/.bashrc ]; then        . ~/.bashrcfi# User specific environment and startup programsPATH=$PATH:$HOME/binexport PATHexport ORACLE_BASE=/u01/app/oracle export ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1 export ORACLE_SID=orclexport PATH=$ORACLE_HOME/bin:$PATH export LD_LIBRARY_PATH=$ORACLE_HOME/libLANG=zh_CN.UTF-8; export LANGNLS_LANG='SIMPLIFIED CHINESE_CHINA.AL32UTF8'; export NLS_LANG

[oracle@localhost ~]$ cd $ORACLE_HOME

-bash: cd: /u01/app/oracle/product/11.1.0/db_1: 没有那个文件或目录

发现oracle安装定义的家目录是在/u01/app/oracle/product/11.1.0/db_1目录下的u01目录是root用户的权限，在切回到root用户，执行如下命令：[root@localhost ~]# cd $ORACLE_HOME[root@localhost dbhome_1]# pwd/u01/app/oracle/product/11.2.0/dbhome_1[root@localhost dbhome_1]# sqlplus / as sysdba或是[root@localhost dbhome_1]# cd bin[root@localhost dbhome_1]# pwd/u01/app/oracle/product/11.2.0/dbhome_1/bin[root@localhost bin]# ./sqlplus / as sysdbaSQL*Plus: Release 11.2.0.4.0 Production on Thu Oct 12 17:20:48 2017Copyright (c) 1982, 2013, Oracle.  All rights reserved.Enter password: Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsSQL>

问题解决！