How to fix the Oracle error NID-00135: There are number active threads?

In this post, you’ll learn more about the Oracle ErrorNID-00135: There are number active threads with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NID-00135: There are number active threads

Reason for the Error NID-00135: There are number active threads

is that the database crashed the last time it was shut down.

How to fix the Error NID-00135: There are number active threads ?

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

Ensure that all threads are closed before retrying the operation. Start and open the database to perform crash recovery, then shut down with the NORMAL or IMMEDIATE options to close it cleanly. Finally, try running the utility again.