Hi Luc,
Could you please let me know what the newsgroup in which you put the same
post was? Is it a managed newsgroup? If your original post was not posted
at a Managed newsgroup, it could not be monitored by Microsoft Newsgroup
Support Team.

For your issue, I understand that you were trying to recover your database
from the latest database backup. When you ran DBCC CHECKDB with REPAIR_FAST
option, you encountered the error.
If I have misunderstood, please let me know.

After you restore the latest version of your database, I recommend that you
first trying detaching your database and then attaching the database with
single file, such as:
exec sp_detach_db 'database name'
Go
exec sp_attach_single_file_db @dbname='database name',@physname=N'your mdf
file path'
Go
After that, run DBCC CHECKDB with REPAIR_FAST to see if it can succeed.

Please note that REPAIR_FAST actually did not perform any repair actions.
If you want to repair the reported errors from DBCC CHECKDB, please specify
REPAIR_ALLOW_DATA_LOSS or REPAIR_REBUILD (minor repair).

If the same error occurs, I recommend that you try running DBCC CHECKTABLE
on each of your table to see if which tables could not be repaired. You may
check if you can replace the table by creating a new one. Also as a more
convenient way, you may consider exporting all of your data tables to
another database via Import/Export Data wizard from SQL Server Management
Studio and then run DBCC CHECKDB to see if there are any errors.

Hope this s. If you have any other questions or concerns, please feel
free to let me know.

Best regards,
Charles Wang
Microsoft Online Community Support
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