How to fix the Oracle error ORA-01321: No Logminer Dictionary for requested start SCN?

In this post, you’ll learn more about the Oracle ErrorORA-01321: No Logminer Dictionary for requested start SCN with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01321: No Logminer Dictionary for requested start SCN

Reason for the Error ORA-01321: No Logminer Dictionary for requested start SCN

The requested session start SCN is less than the SCN of any available Logminer Dictionary build. It is not possible to unwind a Logminer Dictionary to the requested start SCN.

How to fix the Error ORA-01321: No Logminer Dictionary for requested start SCN ?

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

Re-issue the start_logminer request with a start SCN for which a Logminer Dictionary is available.