How to fix the Oracle error TNS-12535: TNS:operation timed out?

In this post, you’ll learn more about the Oracle ErrorTNS-12535: TNS:operation timed out with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12535: TNS:operation timed out

Reason for the Error TNS-12535: TNS:operation timed out

Cause: The requested operation could not be completed within the time out period.

How to fix the Error TNS-12535: TNS:operation timed out ?

You can fix this error in Oracle by following the below steps

Action: Look at the documentation on the secondary errors for possible remedy. See SQLNET.LOG to find secondary error if not provided explicitly. Turn on tracing to gather more information.