Thursday, January 20, 2011

Recover SQL Server Database from Corrupted Table

Sometimes when you want to update or delete SQL server database table and got an error message that shows your SQL server database table has been corrupted. This may happen by the several reasons some of them are improper system shutdown, virus attack, hardware failure, power failure and many more. At this situation you will be unable to access your SQL server database table. For fixing this problem you should use an advanced SQL server recovery software that will repair and restore your damaged SQL server database table.

Consider a practical scenario wherein, you may encounter the given below error messages while your are trying to update, delete or open an SQL server database table:

“Error: 644, Severity: 21, State: 5
Could not find the index entry for RID '1613b1000000100' in index page (1:189), index ID 7, database 'TestDB'..
Error: 8646, Severity: 21, State: 1
The index entry for row ID was not found in index ID 7, of table 2009058193, in database 'test644'.”

Particularly the above error message occur on the non-clustered index of Microsoft SQL server database but sometimes this problem also occurs with the clustered SQL server database database.

Resolution: For restoring corrupt SQL server database table, you have four option which are given below:

Fix Hardware Issue: Check the hardware of the system if you find any faulty hardware then replace it with the new one.
Restore from Backup: Restore it from the latest backup, if backup is clean and updated.
Run DBCC CHECKDB: Run this command to fix the problem.
Re-built Indexes: If possible then rebuilt indexes of table but it is not the better idea.

After performing three above steps and you are still unable to fix the problem then the best idea is to buy an advanced third party SQL recovery software to fix the problem.

Stellar Phoenix SQL Database Recovery is an MDF recovery software that is able to repair MDF as well as NDF files from all instances of corruption. It repairs corrupted MDF, NDF files created in SQL Server 2000, 2005, and 2008. This MDF file repair tool is capable of recovering various database components such as tables, stored procedures, views, collations, queries, triggers, etc. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

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