As the title itself suggests that we are going to discuss on SQL Server database and its corruption here, let’s start with a short intro with Microsoft SQL Server first. Also, we will see how to fix corruption from SQL Server database and repair the database file. I will try to be brief but in a precise manner.
Microsoft SQL Server is basically a relational database management system aka RDBMS developed and provided by Microsoft Corporation. Being a database server, its primary functions is to store and retrieve the data as per requested by any other software application. It doesn’t matter where the software applications are running, i.e. either on the same computer or any other computer which is connected with the same network. There are two types of database used by SQL Server to store data: MDF the primary database, and NDF the secondary database. The major part of the data is stored in MDF file, while NSF files are created when MDF database becomes too large.
The computer applications have unpredictable nature which may cause severe issues and problems. Corruption is considered the worst thing which may occur due to several reasons. Like other computer files, an MDF database is also prone to corruption. Corruption in SQL database is inevitable. There are various minor and major factors which may cause corruption in MDF database, such as: virus infection, bugs attack, software malfunction, unexpected system shutdown, hardware issues, storage media failure, missing of catalog files, and many more.
Once an MDF database is corrupted, it becomes inaccessible and throws errors messages like “Server can’t find the requested database table” or “Database file is missing and needs to restore”. There are different errors may appear at the time of corruption. Sometimes it is found that an MDF database is tagged as suspect. The most possible cause behind this is corruption. In such situation, users are unable to access the MDF database. Luckily Microsoft SQL Server Management Studio is available that can help you fix the database and remove it from the Suspect tag.
By running a couple of database commands aka DBCC on Microsoft SQL Server Management Studio, you can repair MDF database. Make sure you have Microsoft SQL Server Management Studio installed on your system. Let me show you how to repair SQL database in a step-by-step process:
Step 1: Launch Microsoft SQL Server Management Studio on your system. Now connect it to your MDF database.
Step 2: Click the New Query button.
Step 3: On the new query page, paste the following SQL script.
Note: Replace [YourDatabase] with the original name of your database.
EXEC sp_resetstatus [YourDatabase];
ALTER DATABASE [YourDatabase] SET EMERGENCY
DBCC checkdb ([YourDatabase])
ALTER DATABASE [YourDatabase] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
DBCC DATABASE ([YourDatabase], REPAIR_ALLOW_DATA_LOSS)
ALTER DATABASE [YourDatabase] SET MULTI_USER
Step 4: Now click Execute.
Once you are done with this, you can see that your database is no longer be tagged as suspect. Now you can access your MDF database without having any trouble.
The manual procedure for repairing the MDF database is not always effective. It may sometimes fail to repair the database and leave it in an inconsistent state. In such situation, users are left with no other option except using professional recovery software.
Get smart MSSQL Database Recovery software that is programmed for handling highly corrupt MDF database files created by all popular versions of Microsoft SQL Server. Software can successfully restore each and every possible file objects from corrupt MDF database, such as: indexes, views, tables, triggers, stored procedures, rules, keys and all other file components. It supports recovery from MDF as well as NDF files with ease. Download its demo version for free evaluation. You can check the preview of recovered data in the preview session via demo version.
