Oracle Solution for Error ora-01673

ORA-01673: data file string has not been identified

What triggered the Error:

This data file was not in the control file after an incomplete recovery or CREATE CONTROLFILE. Since information from its header is needed for standby database recovery, we can not create a standby control file.

What should we do to fix it:

Find the file and bring it online. If desired it may be taken offline again. If you intend to drop this file, then taking it offline with the DROP option will avoid this error.