If I leave sqlplus open and unused for too long (probably 15 minutes or more), when I EXIT the following message will appear.
ORA-03113: end-of-file on communication channel
Does this indicate a real problem? If so, how might one go about correcting it?
There are a number of other posts about this error at database startup time. This is not at startup time. This is on the client. I can immediately start sqlplus again and have a working connection. Environment is Oracle 18.104.22.168.0 on Windows 64-bit, client is Windows 7 64-bit.