Troubleshooting database consistency errors in Microsoft SQL Server

I’m having some issues with a Microsoft SQL Server 2005 database. I had to use the Continue_After_Error option to restore it. Now I’m seeing weird warnings about column nullability inconsistencies.

When I run DBCC CHECKTABLE on the Company table, I get error messages about internal errors and failures. Trying to rebuild the index gives me a logical consistency-based I/O error.

Here’s an example of what I’m seeing:

-- This fails
DBCC CHECKTABLE (CompanyInfo)

-- This also fails
ALTER INDEX IX_CompanyInfo_ID ON dbo.CompanyInfo
REBUILD

Both commands result in scary-looking error messages about database integrity.

I’m really worried about the state of my database. How bad is this situation? Is there any way to fix these issues without losing data? Any help would be greatly appreciated!

yikes, that sounds rough. i’ve dealt with similar issues before. have u tried running DBCC CHECKDB with the REPAIR_REBUILD option? it might fix some of the consistency probs without data loss. if that doesnt work, u might need to restore from a backup. good luck!

This situation sounds quite serious. Database integrity issues can lead to data corruption and loss if not addressed promptly. Given that you’re dealing with SQL Server 2005, which is no longer supported, your options might be limited.

I would recommend taking a full backup of your database immediately if possible. Then, consider running DBCC CHECKDB using the REPAIR_ALLOW_DATA_LOSS option, but be aware that this may result in some data being altered or deleted to restore consistency.

If this approach fails, it might be worth exploring third-party recovery tools to extract your data. Once recovered, rebuilding the database structure and re-importing the data could be the safest long-term solution.

Regular backups and upgrading to a supported version of SQL Server should be priorities moving forward.

oh wow, that sounds like a tricky situation! have u considered using DBCC CHECKDB with NO_INFOMSGS option? it might give u clearer error messages. also, whats ur backup strategy like? maybe theres a recent backup u can use to compare data? curious to hear more about ur troubleshooting steps!