Oracle Database Error ORACLE not available solution

Oracle Database error ORACLE not available solution the following Error occurs when running commands such as exp, imp, or sqlplus: EXP-00056: ORACLE error 1034 encounteredORA-01034: ORACLE not availableORA-27101: shared memory realm does not existLinux-x86_64 Error: 2: No such file or directoryEXP-00005: all allowable logon attempts failedEXP-00000: Export terminated unsuccessfully identified by "Linux-x86_64 Error: 2: No such file or directory" Row analysis, is caused by incorrect path settings. First, check whether the oracle environment variables are correctly set and check the environment variables that only contain the "ORACLE _" character.

$ Env | grep ORACLE _

 

The following result is displayed:

ORACLE_SID = orclORACLE_BASE =/oracle/app/ORACLE_HOME =/oracle/app/product/11.2.0/dbhome_1/

 

The analysis shows that the last two lines contain the character "/", which is correctly modified using the vi editor.

$ Vi/home/oracle/. bash_profile

 

After the modification is correct, run the following command to reload the environment variable:

$ Source/home/oracle/. bash_profile

 

Try other functions again and find the problem solved!