How to fix the Oracle error ORA-19694: some changed blocks were not found in the change tracking file?

In this post, you’ll learn more about the Oracle ErrorORA-19694: some changed blocks were not found in the change tracking file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19694: some changed blocks were not found in the change tracking file

Reason for the Error ORA-19694: some changed blocks were not found in the change tracking file

A backup or copy found that some changed blocks had not been recorded in the change tracking file. The details of which files and blocks are affected will be in an Oracle trace file.

How to fix the Error ORA-19694: some changed blocks were not found in the change tracking file ?

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

This indicates that there is a problem with the change tracking feature. Disable change tracking and re-start the backup.