ORA-27101ORA-01034错误解决

Oracle已经启动，连接sqlplus后，进行查询，出现下面错误ORA-01034: ORACLE not availableORA-27101: shared memory realm does

Oracle已经启动，连接sqlplus后，进行查询，出现下面错误

ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_ Error: 2: No such file or directory
SQL> shutdown immediate;
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist

Linux-x86_ Error: 2: No such file or directory

想起刚修改过oracle用户的环境变量，应该是找不到oracle_home，重新修改，正常。

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