Summary:
In this article, we will solve the SQL Database error 8942 in different ways and, I will tell you the best way for solving this error. The error is:
“Server: Msg 8942, Level 16, State 1 Table error: Object ID O_ID, index ID I_ID, page P_ID, Test (TEST) failed. Slot S_ID, offset 0xADDRESS overlaps with the prior row.”.
Reasons behind this error:
- It is recommended to keep the offset of the next slot equal to or greater than the previous one. If the offset slot S_ID is not greater than or equal to the previous slot, then the chances of this error are high.
- Hardware malfunctioning can also lead to table structure corruption.
- Forced closure of the SQL Server in the middle of an ongoing process is also harmful to the database.
Solutions
Restore Database from Backup File
In this solution, you need to restore your corrupted files from your .bak file. Every SQL Server user must have a backup of his database. You can easily restore your data from the database. Right-click on the corrupted database and here we can select this hierarchy Task-> Restore-> Database… for restoring the database.
Then we will see a new window opened. Here you can press the browse button and select your database .bak file.
After successfully selecting the backup file press the “OK” button. In this way, we can easily restore our database.
There could be any other hardware problems behind this issue. So, you must fix that first. To know the hardware issues, check the application and SQL Server error logs. If you found any severe issue, then I would recommend to fix it as soon as possible first.
DBCC Solution
In SQL Server, it is possible to repair your database using the DBCC commands.
If you want to repair the database, you can use the DBCC CHECKDB, if just a single table is damaged, you can use the DBCC CHECKTABLE. Here you have a list of the objects that can be repaired: DBCC (Transact-SQL)
Alternative Solution
If you didn’t find the backup of your required database file there must be another way to solving this issue. Now, here we will study a SQL Recovery Software. Stellar Repair for MS SQL is able to fix the error 8942. You can download and install this software without any permissions or charges.
The software repairs corrupt MDF and NDF files and restore all the database objects. After opening the software, you will see an instruction dialog box. We will see a message if the MS SQL Server is running already please stop the services.
Next, select the corrupted .mdf files from your computer or server.
The software will repair the database and, you will get the following message on the screen:
Behind this message, we can see our repaired files hierarchy on the left side of the window.
The Stellar Repair has multiple expertise, one of them is that we can save our results, repaired file and recovered records in multiple formats like CSV, XML, HTML, and .MDF (New and Live Database). You can view the results for free in the trial, but in order to save, repair, and recover the records you will need the paid version of the software.
Here you can select the location using the Browse button for storing your file. You can also replace the current file with the repaired file. It will depend on the user’s requirements.
Conclusion:
In this blog, we learned about SQL Database Error 8942. We studied why this error occurs and, solutions to make the database error-free. We studied a simple method using SQL Management Studio and in the second method, we use a software called Stellar Repair for MS SQL. In method one if we have a backup file of our database then we can easily solve this error. In the second method, if we didn’t make any backup of our database, we need to use this software to make our database error-free.