How to fix the Oracle error ORA-02763: Unable to cancel at least one request?

In this post, you’ll learn more about the Oracle ErrorORA-02763: Unable to cancel at least one request with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-02763: Unable to cancel at least one request

Reason for the Error ORA-02763: Unable to cancel at least one request

No requests were found that could be cancelled.

How to fix the Error ORA-02763: Unable to cancel at least one request ?

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

This error can occur if all the requests dealing with that file number have already been filled.