How to fix the Oracle error ORA-19909: datafile string belongs to an orphan incarnation?

In this post, you’ll learn more about the Oracle ErrorORA-19909: datafile string belongs to an orphan incarnation with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19909: datafile string belongs to an orphan incarnation

Reason for the Error ORA-19909: datafile string belongs to an orphan incarnation

Either the specified datafile was restored from a backup that was taken during a period of time that has already been discarded by a RESETLOGS operation, or Oracle cannot identify which database incarnation the file belongs to. The alert log contains more information.

How to fix the Error ORA-19909: datafile string belongs to an orphan incarnation ?

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

Restore a backup of this file that belongs to either the current or a prior incarnation of the database. If you are using RMAN to restore, RMAN will automatically select a correct backup.