Corruption in SQL databases usually occurs due to damage in the primary data file, i.e., MDF file, or the secondary data file, i.e., NDF file. However, not all SQL databases have secondary data files. Hence, corruption in the MDF file is the primary reason for SQL issues. What could lead to MDF corruption? Here are some common causes:

    • Hardware failure
    • Issues with disks, subsystems, drives, controllers, CPUs, or memory modules
    • Software errors
    • Using an older version of the Windows operating system or SQL
    • Saving data or backups in compressed folders

All of the above can lead to SQL database corruption in one way or another. To keep your SQL working as it should, you inevitably need a SQL repair tool. But which one is the best option among many available on the market?

Here, we strongly recommend you to try professional SQL repair tool - MS SQL Recovery Tool.

Advanced SQL Repair Tool - Microsoft SQL Recovery Tool

Supported Operating Systems: Windows 10/8.1/8/7/Vista and Windows Server 2012/2008
Supported MS SQL Versions: MS SQL Server 2016, 2014, 2012, 2008 and earlier versions

As an enterprise-level software utility, the SQL repair tool is designed to cater to the needs of any organization that encounters SQL database errors, offering the following services:

    • Repairs corrupt SQL database files (MDF/NDF files)
    • Repairs corrupt components of SQL Server databases – Tables, Triggers, Indexes, Keys, Rules and Stored Procedures
    • Recovers deleted/erased records from SQL databases
    • Enables saving the scanned database to resume data recovery at a later stage

Apart from these robust features, you can also avail the benefits of multiple saving options, preview of database objects, and selective recovery of SQL database objects with this software. Now, download and install this SQL repair tool on your computer and follow the detailed steps to learn how to fix MDF/NDF files.

How to Repair Corrupted MDF/NDF Files

Stop the MS SQL Server service.

Press the "Windows Key + R" and type in services.msc.

Locate and double-click SQL Server (Instance Name).

In the Properties window, click Stop to stop SQL Server, and then click Apply to confirm the change.

Step 2: Run the SQL Repair Tool. On the main interface, click on 'Browse' (two dots) to select the corrupt MDF/NDF file. Thereafter, click on 'Repair' to start the analysis of your MDF/NDF file.

If you know where the file is, click “Browse” to locate the database.

If you do not know the location of the file, click Search to search for the .mdf or .ndf file.

Select the SQL database file

< strong > Step 3 : Once done, you will see all the database objects in the left pane. Select the database object that you want to repair and click on 'Export'.

Select Database Objects

Step 4. Choose your preferred way to export the database data: "Export to Database" or "Export as SQL script." If you choose "Export to Database," you must then supply server information, log in to your account, and select the target database, which can be new or existing.

Export SQL database objects

Step 5: SQL Server needs to be restarted before you click OK.

Press Windows + R, then type services.msc.

Locate and double-click SQL Server (Instance Name).

In the Properties window, click Start to restart the SQL Server service, and then click OK to confirm.

Step 6: Click on 'OK' to save the repaired file to the SQL database of your choice.