Sometimes your system may display an error code with error number 5171. This error can have several causes. These diseases are related to SQL error 5171, which states that “database.mdf is not the main database file. (Microsoft SQL Server Error: 5171) “This error mainly occurs due to incorrect computer entries, power problems, virus infections, or corrupted drivers.
Applies to: Error 5171 in MS SQL Server 2017, 2016, 2012, 2014, 2008, etc.
SQL Server Error 5171: MDF Is Not The Main Database File
If you get this experience, it means that you are seeing database error 5171 on SQL Server:
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“ABC.mdf is not just a primary database file. (Microsoft SQL Server Error: 5171)
Error 5171 is a common problem faced by many SQL Server administrators when browsing the SQL web or restoring an MS SQL database. This error can also occur if you cannot create tempdb or cannot attach an MDF file to the database.
To fix this particular error, you must first check the reasons to find the correct solution:
Corrupted or unrecognized MDF statement.
Invalid registry entries
Vi Ous infection
Power failure
Damaged driver
If the last four causes are causing error 5171, it is generally highly recommended that you modify registry entries, remove viruses and restart SQL, find your power connection, and update your drivers. p>
If this issue persists in the MDF database in the image, please read the two solutions below to resolve the issue.
Solution 1: Recover MDF File Using EaseUS SQL Recovery
If the MDF file is damaged or any saved records are suddenly lost in the MDF file, you will receive an error message in SQL.
The quick and safe way to solve this problem is to use a sophisticated SQL recovery tool to recover the mdf file. Please note, if you are looking for such a tool to use online, the product will be provided by the experienced team. It also needs to be safe, 100% healthy, and have a strong technical support team.
Since EaseUS is well versed in data recovery, EaseUS recently released its SQL recovery software to helpFor SQL Server Administrators.
With it, you can easily recover corrupted databases, recover MDF files, and even recover deleted SQL records.
Click Stop in the properties windows to stop our SQL Server and click Apply to confirm.
Step 2. Run the EaseUS Repair SQL tool. In the main interface, click the Browse button (pair of dots) to select the corrupted computer MDF / NDF file. Then click “Recover” to scan your own MDF / NDF file.
If you know the exact location of the clicks file, click Browse to search the database frequently.
If you are unsure where the file is, click Find to locate a specific .mdf or .ndf file.
Step 3. When finished, you will see all the objects listed in the database in the left pane of the window. Select the database items you want to restore and press “Export” with your finger.
Step 4. Select the preferred method for sending data from the database: “Export to another database”, “Export as SQL script”. If you choose “Export to Database”, you will alsoYou will not need to select server information, log in with your primary account, and select a new or newer target database.
Step 5. Before clicking OK, you need to restart the SQL server.
In this Properties window, click Start, restart the SQL Server service and click Apply to test.
Step 6. Click “OK” to save the recovered files to the SQL database.
After saving the recovered file, restart the SQL Server mdf and log in with your password. Then you will usually be able to access the MDF data stream type and SQL server again.
Solution 2: Fix SQL Server Error 5171 Manually
Another method that you can use to start Microsoft SQL Server Management Studio to fix this error manually:
SQL Database Coverage Consulting
In addition, after resolving SQL data source error 5171, it is important to receive some informative advice on how to secure your SQL Server database.
1. Avoid Updating SQL Server Incorrectly
Don’t update SQL Server frequently. If the current version should work correctlyb on your server, leave it.
If you have updated SQL, but you get an error like 5171, use the sp_attch_db command to resolve this issue:
2. Back Up Your SQL Server Database Regularly
SQL Server Automatic Backup Software – EaseUS Backup todo Advanced Server helps you easily create a complete backup of a huge list of SQL servers.
3. Immediately Repair The Damaged SQL Server Collection
After database corruption on SQL Server, use EaseUS SQL Recovery to immediately recover part of the database file recovery and all important personal information.
