Learn the purpose and how to resolve the ORA-01014 error message in Oracle.
When you come upon an ORA-01014 error, the following error message will appear:
ORA-01014: Oracle shutdown in progress
You tried to join to Oracle, however a shutdown is in progress. Users can no longer log into Oracle whilst it is being shutdown.
The option(s) to resolve this Oracle error are:
Wait till Oracle is lower back up and then try logging in again.