While working in the SQL Server environment, it becomes quite common to encounter numerous errors. Some errors are quite straightforward and easy to solve, whereas some of these errors can bother you for a longer period of time. With this article, we will be discussing a similar issue, the SQL Error 823. The error can be considered as a serious issue as it directly impacts the database performance and its integrity. 

To understand this error better, we will go through what  Error 823 is, causes of the error, how users are affected, and what can be the solutions to resolve this error. 

What is SQL Server Error 823?

This error is an I/O error that indicates that there are issues with the hardware or the file system. It generally occurs when the SQL Server is not able to process the read/ write operation. There can be many reasons for the error to occur, but some of these reasons are damaged/corrupted disks, abrupt power outages or any kind of hardware issues. 

When the error occurs, the error message displays the details about the failed operation and the reason due to which it was triggered.

Causes of Error 823

There can be numerous reasons that can cause error 823. Some of these causes are:

Corrupted Disks: This can be one of the reasons for Error 823 to occur. The corruption of the hard disks can occur due to reasons like bad sectors or disk failures.  

Hardware Issues: Another reason for the cause of SQL Error 823 can be issues with hardware. If the storage file where the SQL Database is stored encounters any kind of failure due to drive failure, or overheating, it can lead to the occurrence of this error. 

Sudden Power Outages: Power failures or sudden power outages can also become a reason for damaging the file or corrupting the database altogether. 

Corruptions in File Systems: If the file systems storing the database gets corrupted due to any reason, this may lead to causing the error 823. 

Through this, we understood the causes of the error to occur. But when the error occurs, it further leads to various challenges that affect the user while accessing their SQL Databases. 

Let’s take a look at these challenges now so that we can recommend better solutions to the users. 

Challenges While Recovering The Error 823

• Data Corruption

The SQL Error 823 is majorly caused due to disk or file corruption, resulting in corrupting the data as well. So when the error occurs, the users may come across the missing data or the corrupted table in the database. 

Even the recovery process to retrieve the data can be complicated for the users. 

• Database Downtime

During the recovery process of the SQL Database, it becomes necessary to take down the database to avoid any interruption. Doing this can result in server downtime, leading to further hindrance in the users’ or organizations’ workflow. 

• Data Inconsistency

The error majorly affects the data integration and consistency of the database. In case a user restores the database from backup after the error, there still are high chances of data loss. This can often result in functional issues or data corruption.

These all are the challenges a user might come across during the recovery of the database after the error. So to make the recovery process easier, let’s take a look at the solutions that can help with detecting the error as well as the repair of the database. 

Also Read: How to resolve SQL Server Error 5171 in a hassle-free way?

Problems That Are Linked With SQL Error 823

There are certain issues that could lead to Error 823. These issues are:

Bad Page ID: The bad page ID issue may occur when the header page ID is different from the expected ID. 

Torn Pages: If a page is incorrectly written or incomplete, the SQL Server may read the data incorrectly, leading to the torn page issue. 

Byte Transfer Issues: This issue may arise when the API’s have been successfully called but the byte transfer was not expected. 

All these issues are somehow connected to Error 823. Now as we move on to the solutions, let’s take a look at the first method for repairing the error. 

How to Resolve SQL Server Error 823?

To help you understand the different ways of resolving the error, we will start by the manual method. The first manual method is by using the DBCC CHECKDB command. Let’s take a look at the steps now.

Repair Using DBCC CHECKDB Command

1. Firstly, run the DBCC command to inspect and repair the SQL Error 823. The command to be executed is as follows:

DBCC CHECKDB(Database_Name, REPAIR_REBUILD);

1. To change the database into the Single User mode, use the following command:

ALTER DATABASE Database_Name SET SINGLE_USER WITH ROLLBACK IMMEDIATE 

This method will help you to inspect and repair the error. Now we’ll move to the next manual method. The method is to use the Windows Application Event Log to check for the error. 

Resolve the Error Using Windows Application Event Log

To implement this method, all you need to do is to follow the steps given below:

1. Firstly Scan the SQL Database to detect the suspected pages.
2. Next, check the consistency of the SQL Database.
3. Now, run the DBCC command in case an error occurs.
4. Next, restore the SQL Database using the backup file.
5. After completing these steps, look into the Windows Application Event Log to inspect the issue. 

The manual method doesn’t ensure the recovery of the database after the implementation. So to recover the database more accurately, we will now try the automated solution. Let’s take a look at the working of the automated solution. 

How to Resolve the SQL Server Error 823 Using Automated Solution

For the recovery of SQL Database after the error, the manual method may or may not be able to resolve the error completely. In that case, we go for a professional solution that will help with the accurate recovery. The solution we recommend is the SQL Recovery Tool. There are various features provided by the software to make it a more reliable solution. Let’s begin with the steps of recovery. 

Steps to Recover SQL Database

There are a few steps for the SQL Database recovery after the error 823. The steps are:

1. Install and run the professional software.
2. Go to the open tab to add the MDF files in the software.
3. Choose one option from Quick scan or Advanced Scan as per your requirements.
4. After the scan, preview the recovered database objects in the software.
5. Then click on the export button to export the recovered data. 
6. Choose the destination to export the recovered data and enter the required details accordingly. 
7. Choose the objects to be exported and click on export with schema and data option.
8. Finally, click on the export button to resolve the SQL Error 823.

By following these steps, a user can easily repair the database after the error 823. Now, let’s move to the features of the advanced software. 

Conclusion

In the SQL Server, there are various errors that directly or indirectly impact the SQL databases. Most of them make the data inaccessible or further result in complete data loss. A similar error is the SQL error 823. To resolve this error, we have provided trusted and tried solutions that will help you to repair the error efficiently.