Are you looking for a way to check database corruption in SQL Server? Do you want to know how to fix database corruption in SQL Server? If the answer is yes, you’ve come to the right place. Read this complete blog to know more. But first, let us understand what is SQL Server and the causes of database corruption.
As we know, SQL Server is a trusted name in the domain RDBMS that offers excellent performance. Because of this, professionals and organizations utilize it to effectively manage sensitive databases. Additionally, Microsoft SQL Server has sophisticated features and a self-explanatory interface that make it the best in its arena.
What are the causes of SQL Database Corruption?
There are many reasons why one wants to check database corruption in SQL Server. Here, We’ve listed a few of the typical causes:
- Sudden Power Loss: If there is a sudden power interruption or sudden power outage may become corrupted the whole database in the SQL Server.
- Malware or virus attack: Due to a virus or malware attack, the SQL Server database can become corrupted or damaged.
- Transfer or migration error: This occurs when the files are not completely transferred, during a data transfer. Either from one database to another or from one server to another version.
Ways to Check Database Corruption in SQL Server
In the following section, we are going to discuss a simple approach with visual aids. This method works only with databases that are free of corruption. Now, you need to follow the below instructions sequentially to check SQL database corruption. Let’s learn how to Check SQL database for corruption and accomplish that task.
Follow these below-mentioned simple steps to identify database corruption in SQL servers-
- Database Alerts
- DBCC CHECKDB
- Backup With Checksum
- Database Alerts
In SQL Server, the administrator can configure alerts to notify the user when an error occurs.
To read more about it, check out Microsoft’s blog:
- DBCC CHECKDB
To verify your database’s logical and physical integrity, use the DBCC CHECKDB command. Additionally, the operations DBCC CHECKALLOC, DBCC CHECKTABLE, or DBCC CHECKCATALOG will be executed automatically by DBBC CHECKDB.
Microsoft states it as follows on its blog:
Examines each object in the designated database for logical and physical integrity using the following procedures:
- Run DBCC CHECKALLOC on the database.
- Execute DBCC CHECKTABLE on each table and view in the database.
- Run DBCC CHECKCATALOG on the database.
- Verifies each indeed view’s content in the database .
- Use the Backup command with Checksum
Run the backup and checksum commands in the SQL server simultaneously. By doing this, you will make sure that the user is informed if an issue occurs during the backup process.
The command looks like this:
BACKUP DATABASE XYZ
TO DISK=’E:SQLBackupXYZ.bak’
WITH CHECKSUM;
You can use the above-mentioned methods to Check SQL database for corruption and make sure that your backups are safe and well-kept.
Professional Way to Check Database Corruption in SQL Server
If you’re looking for a way to repair database corruption in SQL Server, then it is strongly advised to use SysTools SQL Database Recovery Tool. It is brilliant software that allows users to recover deleted records from tables as well as all objects. The software helps users to recover and repair all types of corrupted SQL databases without any hassle. Also. the tool supports SQL Server versions 2019, 2017, 2016 2014, 2012, and below. This application provides two scan mode options, Quick or advanced mode.
Follow these steps to recover the corrupted SQL server database:
- Install and run the software to repair and check database corruption in SQL Server. Click on the Open button and choose the corrupt SQL database file
- After this, Choose the scan mode either Quick or Advanced mode as per your need, and then select the Server version. If you wish to recover items as well, then Check the recover deleted object option.
- In the next step, the user can preview the repaired MDF data and Select the Export option to save the data.
- Here, Select any of the export options like SQL Server Database, SQL Server Compatible Script, or CSV file format, then click on the Export/Save button.
Conclusion
Well, in this post, we have mentioned simple and effective ways to check database corruption in SQL Server using two different methods. Apart from this, using a professional tool is better when it comes to dealing with a corrupted SQL Server database. It helps to repair and recover ransomware-affected MDF files without any data loss and hassle.