+ Start a Discussion
Andrew Manson 2Andrew Manson 2 

what are the causes of SQL server database corruption? and how to recover corrupted MDF file

Please help! Can anyone tell me what are the actual causes of Microsoft SQL server database corruption problem?. How to recover corrupted MDF file data of SQL server? 
Himanshi KhuranaHimanshi Khurana
Microsoft SQL server is a widely used and popular database management system. Despite the usefulness of this RDBMS system. The database created by the SQL Server is also prone to corruption issues. Here are the common causes of SQL server database corruption problem:

1. Due to bugs in SQL server
2. Abrupt or improper system shutdown while the SQL server database is opened. 
3. Due to virus infection
4. Sometimes Upgrading SQL Server from one version to newer one also results in SQL server database corruption. 

If you are also dealing with such type of issues then I suggest you to use SQL Database Recovery software. This can easily recover the data from the corrupted MDF and LDF files. The user can easily recover database objects such as tables, views, stored procedures, functions, etc. For detailed info and working of this software, the user can try the demo version of this software. 
Deepali KulshresthaDeepali Kulshrestha
Hi Andrew,
Please follow given below link and steps with the help of these link and steps you can solve your problem, it may be helpful to you.

Reasons behind Corruption of MDF file:
1. The code page of the client computer differs from the database code page.
2. The non-Unicode data type has been updated or inserted in the database before querying the character data.
3. Character data of one code page has been stored in the code page of other non-Unicode character data.

Suggested Measures to Prevent MDF File from Corruption:

1. Try using a binary data type
2. Be active while storing character data in the database using non-Unicode data type
3. Avoid using non-Unicode data type rather use the Unicode data type
4.Prefer using diverse tool for storing and accessing data
5.Disable data translate parameter

Recover Corrupt and Damaged MDF Files using the below two methods:

Method 1: Repair MDF File Corruption via DBCC CHECKDB
Method 2: Repair MDF File Corruption via SQL Database Recovery Software

All the steps for using the above method is given in below link :
Link: https://www.nucleustechnologies.com/blog/data-corruption-in-sql-server-and-mdf-recovery/

I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.

Thanks and Regards,
Deepali Kulshrestha