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How to Repair a Corrupt SQL Database


A SQL database can become corrupt for several reasons, such as unexpected system shutdown, hard disk failure, or virus attacks. If you find that your SQL database is corrupt, don’t panic! In this article, we’ll show you how to repair corrupt SQL database so that you can get your data back.


Recovery of .mdf file


If you have a backup of your .mdf file, you can use it to recover your corrupt SQL database. To do this, follow these steps:


  1. Stop the SQL Server service.
  2. Restore the backup of your .mdf file.
  3. Start the SQL Server service.
  4. Run the DBCC CHECKDB command to verify the integrity of your database.


If you don’t have a backup of your .mdf file, you can try to repair it using the REPAIR_ALLOW_DATA_LOSS option of the DBCC CHECKDB command. However, this option should be used as a last resort because it may result in data loss.


 Repair a Corrupt SQL Database


Recovery of .mdf file from the corrupted state in SQL Server


Two ways can be used to repair a corrupt SQL database, namely:


1) Use of the DBCC CHECKDB command

2) Restore from a backup


The first method is recommended to repair a corrupt SQL database as it does not involve any data loss. This is because the DBCC CHECKDB command checks the physical and logical integrity of all the objects in the specified database and can automatically fix any errors that it finds.


The second method, restoring from a backup, should only be used as a last resort as it will result in some data loss. To restore from a backup, you will need to have a full backup of your database and all subsequent transaction logs. You will then need to restore the full backup and apply each transaction log to bring your database up to date.


Manual Method:


If you have a corrupt SQL database, there are a few things you can do to try and repair it. First, you can try running the DBCC CHECKDB command. This will check the database for any consistency errors and attempt to fix them. If that doesn’t work, you can try restoring the database from a backup. Finally, if you don’t have a backup, you can try using the REPAIR_ALLOW_DATA_LOSS option, which will attempt to repair the database but may result in some data loss.


Automatic Method:


If your SQL database is corrupt, there is no need to panic. Instead, there are a few simple steps to repair the database and get it up and running again. The first step is to try the automatic repair method. This can be done by opening the Database Utility and clicking on the ‘Repair’ button. The utility will then scan the database for any errors and attempt to fix them. In most cases, this will successfully repair the database and allow you to continue using it as normal.


If the automatic repair method does not work, or if you are not comfortable using it, there are a few manual methods you can try. However, these are generally more complex and should only be attempted if you are confident to follow instructions carefully.


SQL Database Recovery using Stellar Repair for MS SQL


If your SQL database has become corrupt, you can use Stellar Repair for MS SQL to repair it. This software will scan your database and repair any corruption that it finds.


Once the software has finished scanning your database, it will show you a list of all the errors that it has found. You can then choose which ones you want to fix.


The software can also repair any damaged indexes and tables. Once the software has repaired your database, you will be able to use it just like before.




There are several ways for SQL Recovery, but choosing the right method for your particular situation is important. If you are not comfortable performing a manual repair, several software programs are available that can automate the process for you. However, if you have the time and patience to perform a manual repair, it can be well worth the effort as it will allow you to fix the corruption without losing any data.

Scarlett Wei

Scarlett Wei, an outreach specialist and SEO expert hailing from the UK. With over 4 years of experience in the dynamic world of digital marketing. I specialize in crafting engaging content and building effective SEO strategies. My journey in this field has honed my skills in link building and search engine optimization, empowering brands to achieve their digital objectives. I'm committed to delivering top-notch results and driving online growth.

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