How To Fix DB02105 - Database file offline. ORA-1135. File accessed for DLM query is offline.

SAP Error Message - Details

• Message type: E = Error

• Message class: DB02 - For Oracle Component of the Database Monitor

• Message number: 105

• Message text: Database file offline. ORA-1135. File accessed for DLM query is offline.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02105 - Database file offline. ORA-1135. File accessed for DLM query is offline. ?

  The error message DB02105 with the description "Database file offline. ORA-1135. File accessed for DLM query is offline." typically indicates that a database file that is required for a certain operation is currently offline. This can happen in Oracle databases when a data file is taken offline for maintenance or due to an error.
  Causes:
  
  File Taken Offline: The specific data file has been manually taken offline by a DBA for maintenance or recovery purposes.
  File Corruption: The data file may be corrupted, leading to it being marked as offline.
  Database Recovery: The database might be in a recovery state, and certain files are not accessible until the recovery is complete.
  Storage Issues: There may be issues with the underlying storage that prevent the database from accessing the file.
  
  Solutions:
  
  
  Bring the File Online:
  
  If you have access to the database, you can bring the file back online using the following SQL command:
  ALTER DATABASE DATAFILE 'path_to_your_datafile' ONLINE;
  
  Replace 'path_to_your_datafile' with the actual path of the data file that is offline.
  
  
  
  Check File Status:
  
  You can check the status of the data files using the following query:
  SELECT file_name, status FROM dba_data_files;
  
  This will help you identify which files are offline.
  
  
  
  Investigate and Resolve Corruption:
  
  If the file is offline due to corruption, you may need to perform recovery operations. This could involve restoring from a backup or using Oracle's recovery tools.
  
  
  
  Check for Storage Issues:
  
  Ensure that the underlying storage is functioning correctly and that there are no issues preventing access to the data file.
  
  
  
  Consult Logs:
  
  Check the Oracle alert logs and any relevant trace files for additional information about why the file was taken offline.
  
  
  
  Contact DBA:
  
  If you are not the DBA, it may be necessary to contact your database administrator for assistance, especially if the issue involves recovery or corruption.
  
  
  
  Related Information:
  
  Oracle Documentation: Refer to Oracle's official documentation for more details on managing data files and handling offline files.
  Backup and Recovery: Familiarize yourself with Oracle's backup and recovery procedures to prevent data loss in case of file corruption.
  Monitoring Tools: Use monitoring tools to keep track of the database's health and file statuses to prevent such issues in the future.
  
  Always ensure you have proper backups before performing any operations that could affect the database's integrity.