How to Deal with Database Corruption in SQL Server including Errors & All Possible Solutions

admin | data recovery | 5 minutes read | Modified on: 22-01-2020

Explore Disparate Types of Database Corruption in SQL Server, Errors, & their All Possible Solutions in this write up.

Would you like to know about how to deal with Database corruption in SQL Server, errors & all effective solutions then read this blog till the end and get complete information about SQL Server Database corruption repair process. Frequently, users face complications to resolve corruption of SQL database server and such a user query is provided below –

“I am facing issue with an error message, when I am attaching a data file with MDF file to MS SQL Server 2014, that the header of the file ‘../MSSQL/DATA/yyyy_data.mdf’ is not a proper file header of the SQL database. It is also providing me that the file size property is incorrect. After finding by the internet, I got that it is the header corruption part of MDF file. I tried many solutions & tricks to solve SQL database corruption header error but could not succeed. Therefore, I am facing this issue again & again. I have no idea about the SQL Server database corruption repair processing & how to deal with database corruption in SQL Server. Please assist me, any help will be most appreciated. Thank you.”

Discussion about SQL Database Server Corruption in brief

The SQL Server saves its primary data in MDF file and its first page which contains all header information of files. The header page of SQL database file stores all information about all database such as size, file signature & many more. When they attach the MDF file in SQL Server, lots of users face errors such as SQL Server Error 2, MS SQL Server header error 5172, SQL Server Error 5171. Basically these types of database corruption in SQL Server come when the primary SQL database file MDF becomes corrupted or damaged. Because of this issue, header information becomes mismatched and therefore database gets in inaccessible state. Now we are explaining about the SQL Server database corruption causes, reasons & steps of solutions.

SQL Database Corruption Causes & its Solutions

  • Do not Shut Down Server – after knowing about the major database corruption in SQL Server, everyone tries to shut down the SQL Server, but that is not a smart way because it may be responsible to data loss.
  • Do not run the repair commands suddenly – any repairing command doesn’t work for all causes of database corruption issues, such as DBCC CHECKDB command doesn’t work for all purpose repairing process. If all other methods fail to work then manual method may be suitable for users at this time. Sometimes, this command makes a reason for data loss. So if you have complete technical knowledge about SQL Server & corruption solutions, only then use this command.
  • Do not Reboot Server – with the help of reboot Server process, users can fix minor issues from OS’s end. If the main issue is from SQL Server’s end then reboot process is not an enough way to resolve the SQL Server database corruption issue. Rebooting way can only move the database in offline mode & detect SQL database in SUSPECT mode.
  • Do not upgrade SQL Server – users should not upgrade SQL Server to fix SQL Server database corruption. Because it is not an exact way and upgrading & updating the edition only created new hurdles.
  • Do not detach or reattach SQL Database data – If you have any SQL database corruption issue then detaching & reattaching data can make way for data loss.

 

There are some prevention ways available to deal with SQL Server corruption issue.

  • SQL Server database corruption reasons from malicious attack.
  • Provide data validation.
  • You should modify the SQL Server password on the regular basis.
  • Best option is to handle a web app firewall when deal with SQL database so as to resolve it.
  • Do not apply unnecessary functionalities; therefore prevent them from hacking process.

Manual Way to Fix SQL Database Corruption Issue

The mentioned provided way can be useful for only minor SQL server database corruption issues, so it recommended to not expecting instant outcome. This way only depends upon your corruption level, since it is not a perfect way to fix SQL Server database corruption issue. Because sometimes, it fails due to technical issues. Still, want to know about manual way then follow the given ways to resolve minor issues of SQL database Server corruption issues.

  • Users can try database console command DBCC REPAIR & DBCC CHECKDB command to resolve the corruption issue of SQL Server. This way needs proper technical skills & good grip on command. Therefore, it is suggested that non-technical user should not try this way for solution and it is useful only for minor cases of SQL Server corruption.
  • For resolving the error user can use the Transaction log file or get a backup file to repair database, but also it is not a useful solution for large database corruption. It can fix only minor level issues.

SQL Server Database Corruption Repair Solution – Alternative Way

To fix SQL Server database corruption properly, users can use the SQL Database Recovery Tool that is complete & efficient solution to repair SQL Server database from all corruption. The solution is capable to fix all types of SQL Database server corruption issues without any data loss. It can simply scan all corrupted database and also repair them. After repairing, it provides preview of all recovered SQL data items and export to SQL Server properly.  It can repair multiple .mdf files of SQL database and also export in Server at once.

If still, you are disappointed with the SQL Database recovering process and want a complete demo of the process then download the solution and go with its free demo edition facility which can scan & repair all SQL database and also provide a preview of all recovered items but it saves only 25 items in SQL Server without any cost. Therefore, just check and get satisfaction for your SQL Recovery because after using trial you can also know that the tool is exact not for your recovery output.