Fix Corrupt SQL Database and Restore Lost Data

MS SQL server database components are broadly divided into header and boot page, with data constituents namely metadata information and critical data and information in two of them respectively. Both of them have its own purpose to serve while header contains information required for accessibility, boot section is collection of data. So, in case of corruption in any of the two pages, database becomes corrupt. Such a situation is often notified by appearance of error messages which later on become prominent with Unmountable database. This leads to inaccessibility of records stored in SQL database and thus complete data loss situation. In order to resolve such an erroneous situation, updated, valid database backup is helpful.

In a particular case, when accessing SQL server database, following error may be received –

Msg 5172, Level 16, State 15, Line 1 The header for file ‘C:\Program Files\Microsoft SQL Server\MSSQl.1\MSSQL\DATA\FileHeaderTest.mdf’ is not a valid database file header. The PageAudit property is incorrect.


Msg 913, Level 16, state 4, Line 1 could not find database ID 19. Database may not be activated”.

In cases, database transition is not the issue, it is viable to consult primary support provider. By taking into account SQL server error logs and additional details concerning the situation makes its resolution easy.

With variation in cause, for header page corruption and boot page corruption for the error message mentioned respectively, inaccessibility of database takes place and thereon the need to repair server database mdf file.

Boot page and file header are among the prominent database components and any complexity taking place in them resulting from improper application functioning or shutting down system improperly. Besides that, situation is even made more complex because of inability of DBCC CHECKDB command to repair the corruption and fix persisting issues.

Therefore, to fix file header and boot page corruption, MS SQL server database needs to be scanned exhaustively based on high end algorithms. Procedures so carried on repair the corrupted components and thus help resolve the issue by saving the database into a new one for proper access. MDF repair supports MS SQL server 2008, 2005 and 2000 used in Windows system.