ORA-01110 data file %s

Question: What is the cause of the error “ORA-01110 data file %s”? How do I resolve this?

    SQL> alter database open resetlogs;
    alter database open resetlogs
    ERROR at line 1:
    ORA-01194: file 14 needs more recovery to be consistent
    ORA-01110: data file 14: ‘/u01/EQ2/EQ2_01.dbf’

Answer: According to the oerr utility the cause of the “ORA-01110 data file %s” error could be due to the reason below.

    01110, 00000, “data file %s: ‘%s'”
    Reporting file name for details of another error. The reported name can be of the old file if a data file move operation is in progress.
    See associated error message.

There can be a number of reasons for this error.

Reason 1 : Not all required archives were applied. Make sure that the required archives are available and restart the recovery process.

If you do not have the required archive logs, perform an incomplete cancel-based recovery.


    ORA-00279: change 9199631104 generated at 08/11/2015 12:01:10 needed for thread 1
    ORA-00289: suggestion : arch1_6066601_758161962.dbf
    ORA-00280: change 9199631104 for thread 1 is in sequence #6066601
    Specify log: {=suggested | filename | AUTO | CANCEL}
    Log applied.
    Media recovery complete.

When RMAN prompts for archive log files that are missing, use CANCEL recovery option and open the database with RESTLOGS option.

Your database should open up and no longer give the ORA- error.

Reason 2 : If the “ORA-01110 data file %s” error is seen on the DataGuard or Standby Database this is probably due to the datafile being inaccessible to the database due to a storage issue.

Once the datafile is brought back online and the archives shipped and applied to the DataGuard or Standby environment the datafile will become consistent.

First verify on the PRIMARY database to make sure that the logs are being shipped and the LOG_ARCHIVE_DEST_STATE_2 is set to enabled. You can further check the log file on the destination DG database to confirm.


    SQL> show parameter LOG_ARCHIVE_DEST_STATE

    ———————— —— ——-
    log_archive_dest_state_1 string ENABLE
    log_archive_dest_state_2 string DEFERRED

    — Enable DataGuard Archive Destination
    SQL> alter system set log_archive_dest_state_2=’ENABLE’ scope=both;

On the Dataguard/Standby database ensure that the recovery process is started up.


Once the archive logs are applied the datafiles will become consistent and the database can be opened up.

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