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.