I am using Oracle 12c in my windows machine.
Some times, Oracle instance went down and it will not be startup again and getting the below error.
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 SERIAL NUMBER: 0
I need to reinstall the complete oracle software again for rectifying the issue.
Any one facing this issue already? Please suggest the solution if any?