While using MS SQL, including SQL Server 2012, it's almost inevitable that you may encounter the SQL database corruption error in one moment or another. If that happens, you are unable to access and use your database as you want, which is quite annoying and is undesired. Based on our experience, SQL database corruption issue may occur due to one of the following reasons:
When you come across a situation in which you need to repair your SQL Server 2012, you can choose to recover your SQL database with the backups. However, if you don't have any backup available, you will need to find a reliable SQL repair tool.
Applies To: MS SQL Server 2016, 2014, 2012, 2008 and older versions
Among the SQL repair tools, Qiling MS SQL Recovery has been proven as professional and trustworthy. It will help you solve various SQL database issues and meet your diversified needs by providing solutions to:
Get the powerful software right now and repair your SQL server 2012 within minutes.
SQL database corruption implies the corruption of the MDF or NDF file of the database. Thus, to repair SQL Server 2012, you will need to repair the MDF/NDF file of the database.
Step 1. Stop MS SQL Server service
Press "Windows + R" and enter services.msc.
Find and double-click "SQL Server (instant name)".
In the Properties windows, click "Stop" to end the SQL Server and click "Apply" to confirm.
Step 2. Run Qiling SQL repair tool. In the main interface, click "Browse" (the two dots) to choose the corrupted MDF/NDF file. Then click "Repair" to start analyzing your MDF/NDFfile.
If you know the exact location of the file, click "Browse" to locate the database.
If you don't know the file location, click "Search" to search for the .mdf or .ndf file in.
Step 3. When it has done, you will see all the database objects listed in the left pane of the window. Choose the database objects you'd like to repair and click "Export".
Step 4. Choose a preferred way to export the database data: "Export to database" or "Export as SQL scripts". If you select "Export to database", you need to further select the server information, log into your account, and select a destination database, either a new one or an existing one.
Step 5. Before you click "OK", now you need to restart the SQL Server.
Press "Windows + R" and enter services.msc.
Find and double-click "SQL Server (instant name)".
In the Properties windows, click "Start" to restart the SQL Server service and click "Apply" to confirm.
Step 6. Click "OK" to save the repaired files to your desired SQL database.
Extra Tip: How to Repair SQL Server 2012 with DBCC Command
DBCC CHECKDB checks both logical and physical integrity of all the objects in a specified database. Using the DBCC command is an alternative choice to repair your SQL Server 2012. The command is quite straightforward:
DBCC CHECKDB ('DatabaseName')
After running this command, it will check the consistency error and repair it if possible.
In addition to learning how to repair SQL Server 2012, it is also well worth knowing how to prevent database corruption. Here are some suggestions:
But sometimes, SQL database corruption can happen beyond your control. Thus, remember to permanently equip your computer with an SQL repair tool like Qiling MS SQL Recovery, which will greatly minimize your risk of data loss.