How to Resolve Error 823 Affects SQL Server Database Recovery?

How to Resolve Error 823 Affects SQL Server Database Recovery?

MS SQL Server is the RDBMS (Relational Database Management System) that helps to store & retrieve the data requested via other applications. Moreover, it supports numerous transaction processing, analytics applications, and business intelligence, usually in corporate IT environments.

However, it is common to encounter errors & issues while handling SQL Server. One such error that users are currently facing & reporting is- “SQL error 823.” Here’s how the error actually looks like:

SQL error 823

The above-shown error occurs when SQL Server fails to perform I/O operations, like read or write. You cannot even perform SQL-select queries to read data. This error message interrupts the smooth functioning of the SQL Server, hence it’s essential to address it ASAP. 

Therefore, I have equipped this post that discusses the possible reasons and solutions to fix error 823 affects SQL server database recovery successfully.

Read further for more info…

What Causes SQL Fatal Error 823?

There could be a wide variety of reasons that can lead to SQL server error 824. Here I have listed the primary causes:

  1. Inconsistency in the SQL server files
  2. Update & reinstallation of MS SQL Server
  3. Failure of API coordination with OS
  4. Virus Infections
  5. Hardware errors
  6. Instability of file system 
  7. Due to a corrupt SQL Server database
  8. Mailed “Input/Output logical check”.

As you have known the significant factors, now, it’s time to troubleshoot this error using the best methods.

Methods to Fix Error 823 Affects SQL Server Database Recovery

In this section, you will find easy ways to fix SQL fatal error 823 manually. Also, you will learn how to get rid of it using automatic SQL recovery software.

Method 1- Using Backup

If you are unable to access the SQL Server database due to error code 823, you should first check for the available backups. 

However, if you are one such user who used to create a backup of your database regularly, then you can easily restore SQL Server DB from the available backup.

In the absence of a backup, you can try the below tricks to troubleshoot this error.

Method 2- Use DBCC CHECKDB Statement to Fix Error 823 Affects SQL Server Database Recovery

Well, there are various statements & commands in the SQL Server Management Studio that helps to check and solve the Server error. One such statement is- DBCC CHECKDB.

Here, you can also use the DBCC CHECKDB command to repair the SQL database and get rid of this error.

Run the below T-SQL query –


Nonetheless, to repair the SQL database, it is important to restrict its usage to a single user. However, you can run the below T-SQL statement to change the database to the Single-user state:


Now, you can simply take assistance from a SQL Server Management Studio in order to change the mode of the user. All you need to do is to navigate to a database >> make right-click on that. After that, in Restrict Access, you have to choose the feature “Options.” Next, choose a SINGLE USER mode >> click OK.


Once you have successfully changed the mode of the user, you will have to again run the statement ‘DBCC CHECKDB’ to verify the fixed database.

Method 3- Try an Expert-Recommended MS SQL Repair Tool

If the above-manual methods fail to fix error 823 in the SQL server, it might be possible that the error caused due to SQL DB corruption. In such a case, you must use the SQL database repair tool, like Stellar Repair for MS SQL. 

This program has the ability to repair corrupt MS SQL Server DB (MDF) files successfully. The use of this SQL recovery software makes the procedure fast & eliminates manual intervention. Furthermore, it’s the best alternative when you don’t have a backup.

Below you can find additional capabilities of this SQL database recovery software:

  • Easily repairs damaged/corrupted MDF & NDF files.
  • It is easy to use & 100% safe.
  • Recovers tables, triggers, indexes, rules, defaults, and keys.
  • Displays preview of all the items after scanning the corrupt database file.
  • Saves the repaired files in MDF, XLS, HTML, and CSV file formats.
  • Compatible with Microsoft SQL Server 2019, 2017, 2016, & earlier versions.

So, all you need to do is to download & install this tool on your PC and follow the below steps to repair & recover the SQL DB file:

Step 1- Launch Stellar Repair for MS SQL software on your computer.

Step 2- Click on the Browse option or Search to find the corrupted MDF file.

Step 3- After uploading the MDF file, click on the Repair button.

Stellar Repair for MS SQL

Step 4- You can run the standard scan for repairing the particular DB file quickly.

run standard scan for repairing DB

Step 5- The program will display the preview of the repairable DB objects & select the specific objects that you need to restore. 

Step 6- Afterward, go to a File menu & click on the Save option.

preview repairable DB objects and restore using Stellar Repair for MS SQL

Step 7- Now, enter the required details as displayed in the below screen in order to complete a file-saving process.

save database

Step 8- After completion of the .MDF file repairing process, you’ll no longer get the SQL error code 823.

Time to Conclude

Error 823 affects SQL server database recovery commonly encountered by SQL Administrators. However, it can lead to severe data loss if it’s not solved quickly. 

Although, by applying the above-specified solutions, the administrators & users can easily fix the fatal error 823 in MS SQL. For quick resolution, it is suggested to opt for the automatic SQL database recovery software mentioned in this post to repair the MDF files.

In addition, ensure to create a backup of your vital SQL database files regularly to minimize DB corruption & severe data loss in the future.

That’s all…

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