DBCC CHECKDB Repair Allow Data Loss Not Working – [Solved]

Description: Dealing with DBCC CHECKDB repair allow data loss not working? Here we have given the best solution to tackle this problem.

DBCC CHECKDB Repair_Allow_Data_Loss Not Working  It is crucial for database administrators to ensure the security and integrity of their data. The DBCC CHECKDB Repair Allow data loss command is one tool you may use to repair SQL database. What happens if this command does not perform as intended and your SQL Server database has differences that needs to be found and fixed? It is unfortunate that this happens frequently, and when it does, it can be upsetting and even terrifying. This article will examine possible limitations of the DBCC CHECKDB Repair allow data loss command and provide workable methods to assist you in overcoming this technical obstacle. 

 So fasten your seatbelt and get ready to discover how to safeguard your database in the face of difficulty.  

Additional Tips: Read this to fix SQL Server DBCC CHECKDB consistency errors

What Happens When We Executes DBCC CHECKDB Commands?  

Microsoft SQL Server’s DBCC CHECKDB command verifies a database’s consistency and integrity. The database’s tables, indexes, and other objects are subject to a number of checks by SQL Server when this command is run to make sure they are both conceptually and physically consistent. The checks include making sure all database objects are appropriately linked, checking for erroneous object references, and confirming the accuracy of each data page. DBCC CHECKDB will make an effort to fix any discrepancies or problems discovered. The process of running DBCC CHECKDB involves numerous stages. At the initial stage, the database’s physical consistency is examined, including the consistency of its pages, indexes, and other items. The database’s logical consistency checking happened in the second phase, along with the accuracy of all object links and the absence of orphaned objects. Lastly, DBCC CHECKDB makes an effort to fix any errors it discovers, including rebuilding indexes or fixing any damaged data pages. DBCC CHECKDB can deal with a number of mistakes, it cannot fix every error, and some errors might need further user intervention to be fixed.

Limitations of DBCC CHECKDB Repair_Allow_Data_Loss Commands

A command in Microsoft SQL Server called DBCC CHECKDB with the “REPAIR ALLOW DATA LOSS” option
attempts to fix inconsistent databases. However, due to the possibility of data loss, this technique should only be
used with caution. The REPAIR ALLOW DATA LOSS option has a number of restrictions, which are detailed

  1. Cannot guarantee complete data recovery: When the REPAIR_ALLOW_DATA_LOSS option is used,
    SQL Server will attempt to repair the inconsistencies it finds. However, it cannot guarantee that all data
    will be recovered, and some data may be permanently lost.
  2. Can cause data corruption: In some cases, attempting to repair inconsistencies with the
    REPAIR_ALLOW_DATA_LOSS option can actually cause further data corruption, making the problem
    worse instead of better.
  3. Can be time-consuming: Repairing inconsistencies with the REPAIR_ALLOW_DATA_LOSS option can
    be a time-consuming process, especially for large databases with many objects.
  4. May require additional manual intervention: Even after running the REPAIR_ALLOW_DATA_LOSS
    option, some errors may still require additional manual intervention to correct, such as restoring from a
  5. Should be used as a last resort: The REPAIR_ALLOW_DATA_LOSS option should only be used as a
    last resort when all other options have been exhausted, and the risk of data loss is deemed acceptable.

What to do when DBCC CHECKDB Repair Allow Data Loss not Working?

If DBCC CHECKDB with the REPAIR_ALLOW_DATA_LOSS option fails to repair database inconsistencies, or if the risk of data loss is deemed unacceptable, a third-party tool such as Stellar Repair for MS SQL can be used. SQL database repair software is a database repair tool that can fix a wide range of database inconsistencies, including those that cannot be repaired using DBCC CHECKDB.

Stellar Repair for MS SQL uses advanced algorithms to scan and repair corrupted or damaged SQL Server databases, and comes with a user-friendly interface that guides users through the repair process. It can repair various database components, including tables, indexes, and stored procedures, and supports recovery from both MDF and NDF files.

Let’s have at the steps to use Stellar Repair for MS SQL,

  1. Discover or search for the corrupted SQL database MDF file.
  1. After selecting the SQL database MDF file, select Repair from the menu.
  1. Choose a suitable scan mode, and click the OK button to correct the file.
  1. The program displays the status of the database file repair operation.
  1. Click OK once the MDF file repair procedure has been successful.
  1. By choosing the Save option from the File menu, you can preview the recoverable database items and then save them.
  1. Choose the option to save the updated SQL database file, and then click the Next button to continue.
  1. Click the Next button after entering the information required to connect to the SQL Server and save the corrected MDF file.
  1. Select a suitable file-saving method, then click the Save button to continue.
  1. The program provides status updates for the file-saving process, including Finished, Processing, Pending, and Aborted.
  1. A confirmation message appears following the successful completion of the saving process.


In summary, encountering the problem of DBCC CHECKDB Repair_Allow_Data_Loss not working or failing can be an exasperating experience for any database administrator.

Fortunately, there are other options available, including third-party database repair tools like Stellar Repair for MS SQL. With the instructions provided in this article, you can easily repair your SQL database and recover your essential data.

Don’t allow the DBCC CHECKDB Repair_Allow_Data_Loss issue to dishearten you from repairing your corrupted database. Use the Stellar Repair for MS SQL software to overcome this problem.

Leave a Reply

Your email address will not be published. Required fields are marked *