SQL Server Recovery Tool to Repair Corrupt SQL Database Files

When to use Kernel for SQL database recovery?

When your SQL database hits RECOVERY PENDING mode

SQL databases store large amounts of data, so they are prone to corruption and have been stuck in “Recovery Pending” mode multiple times. Always use the SQL Server recovery tool to resolve corruption and recovery pending errors in SQL MDF files. It will deeply scan your corrupted MDF file and restore all database objects such as tables, triggers, views, etc. Also, SQL recovery tool lets you preview the entire data of selected folders and files data, such as primary keys, indexes, user data types, and stored procedures in the toolbar. Read more...

Restore SQL Server database with Norecovery

When users have multiple databases of their SQL Server, they need to recover them sequentially. In this state, users can restore SQL Server database with the Norecovery option. It allows you to perform the SQL database restoration process except for the last one. However, users cannot access the restoring database while processing Norecovery option. Basically, this option is very helpful for restoring multiple databases to the new and existing databases. It’s a manual procedure that lets you restore SQL database that can manage all your workload and efficiently restore database from MDF file.

SQL Server Suspect mode

SQL Server data are very crucial and bulk in numbers, that’s why it’s prone to corruption and shows that database is in suspect mode. It’s majorly happens in every SQL Server version, including 2019, 2017, 2016, 2012, 2008 R2, 2008, 2005, 2000. It occurs due to accidental power loss, server timeout, virus, and malware attacks. When SQL Server DBA goes through with these situations then SQL Server promptly shows Suspect mode. Our SQL Database file repair can efficiently handle this situation and easily perform SQL database recovery from suspect mode. Read more...

Explore SQL recovery software’s key capabilities

SQL recovery requires advanced software to complete the process. Our Kernel for SQL database recovery tool offers superlative features designed to perform SQL database repair and restore your SQL database efficiently, as it uses the high-standard algorithms of the recovery software.

SQL file recovery

The SQL database recovery tool recovers SQL database objects, including tables, views, triggers, primary keys, store procedures, indexes, unique keys, stored procedures, foreign keys, default values, checks, rules, and user data types.

Restore deleted records from SQL database

The SQL recovery software enables quick restoration of deleted records from SQL databases. It ensures efficient recovery of lost data while preserving the database’s integrity and minimizing disruption during restoration.

Preserve data integrity post recovery

The SQL database repair tool ensures the complete integrity of SQL database data file objects after successful recovery. Experience effortless data repair and ensure secure SQL recovery of your valuable database by selecting suitable saving options.

MDF and NDF file recovery

Restore database from primary and secondary database associated with the SQL Server. This MDF file recovery software can effectively repair SQL Server database files, such as MDF and NDF files.

Restore primary /foreign keys

The SQL recovery tool restores table’s keys including Primary/Foreign keys to the new and existing database. The software’s advanced algorithms store keys with their UNICODE characters.

Restore deleted SQL Tables data

While working on SQL Server databases, many users accidentally deleted their SQL table data. The SQL Server recovery tool will easily repair accidentally deleted SQL table data with their structured procedures.

Recover BLOB column

Binary large objects are those data that stores large amount of binary data in table form. This advanced SQL repair tool recovers BLOB Column of tables from SQL Server with ease.

Fix multiple database-related issues

When an SQL Server database gets corrupted, users run DBCC CHECKDB command to repair SQL database . However, occasionally, this command will not eliminate corruption from the database. In that case, SQL data file corruption recovery tool perform smooth SQL database repair process and eliminate corruption from your corrupted database.

MDF file to SQL Server database

Restore database from MDF files and export them to the SQL Server database. The SQL Database Recovery software can easily restore database from MDF file and export them to the Live SQL Server to make them accessible from anywhere.

Export Schema and its data to SQL Server

The SQL data recovery tool will effortlessly recover Schema and data in it to SQL Server. It lets you export Schema data of selected table’s to SQL Server without any data loss.

Restore deleted, dropped, and truncated data

The SQL data recovery tool allows users recover their accidentally deleted, dropped , and truncated data, such as functions, triggers, stored procedures, indexes, views, rules, etc., from the SQL Server.

Export selective SQL data

Retrieve selected SQL data from corrupted MDF and NDF files. The SQL database repair software provides a selection section where you can select folders and their specific files for the desired exporting process.

Restore SQL Server Database into SQL Script

The SQL data recovery tool lets you save entire SQL Server database into SQL Script (Batch file). In the saving mode, select SQL Script, browse the destination location, and save restored SQL Script in your preferred location.

Auto-detect SQL version automatically

The SQL recovery software has an advanced algorithm that reads all the SQL data files from any SQL version. It will recover and export data from SQL Server versions such as 2022, 2019, 2017, 2016, 2014, 2012, 2008 R2, 2008, 2005, 2000, and 7.0.

Dual authentication modes for live SQL Server

When saving recovered data to a live SQL Server with SQL database recovery tool, you can choose between Windows and Server authentication. Input valid credentials based on your authentication type and initiate instant recovery.

Two different scanning modes

Scan and fix SQL Server database issues with the SQL repair software’s two different scanning modes; Standard and Advanced. Standard mode facilitates a quick scan and resolves minor bugs and errors. Advanced scan initiates a deep scan to repair corrupted MDF files.

Preview recovered database components

Get a detailed view of all your recovered data, presented in tables in a hierarchical order. The SQL recovery tool showcases up to 1000 records per page, allowing users to select any table for a closer look at its components.

Support UNICODE and ASCII character

The SQL Server recovery tool will restore SQL Server database in various languages and support all characters such as UNICODE and ASCII character. With this advanced feature you can easily store the netFORUM, NVARCHAR data type.

Common reasons for SQL Database corruption

Check out multiple reasons behind SQL database corruption, so that you can easily perform SQL database repair and prevent it from any malware and corruptions in the future.

Header corruption

SQL databases store a lot of data in a single table, which makes them prone to corruption. Occasionally, storing multiple data in a single table/column can corrupt the database's header.

Storage media failure

Since files are stored in the storage media, like a local drive or external media device, any failure to store media leads to file corruption or data loss.

Network failure

Internet connection plays a crucial role in SQL databases. If you don’t have an active internet connection while working on an SQL Server, then your database will get corrupted.

Unnecessary compression

Sometimes, you compress large-sized SQL database files to make them smaller. But, in a few instances, this process corrupts the SQL database and damages your crucial data.

Virus attacks

Virus attacks are the most harmful things to computers and SQL databases. Make sure to prevent your computer and SQL database from any virus attacks; otherwise, it will become difficult to perform SQL recovery.

Internal bugs

Prevent your SQL database from internal bugs, which can degrade your software performance. Internal bugs intentionally affect the SQL databases and damage their data which leads to corruption.

Software malfunction

When your SQL Server does not respond for a long period and shows anonymous errors like software malfunctioning, there is a risk of the SQL database becoming corrupted.

Abruptly system shutdown

Abrupt system shutdowns can hamper your data while working on SQL Server. When an accidental system shutdown occurs, users cannot save their crucial data, which may require SQL database repair.

Human errors

When you make multiple changes in SQL Server, such as closing SQL Server forcefully, adding invalid content in SQL Server, or modifying the database with Hex editor, your database becomes inaccessible.

Common SQL database errors successfully resolved by our SQL recovery tool

FileName.MDF is not a primary database file. (Microsoft SQL Server, Error: 5171).
Database FileName.Due to inaccessible files or insufficient memory or disk space, MDF cannot be opened. See the SQL Server error log for details.
The physical file name FileName.mdf may be incorrect.
The header for file FileName.mdf is not a valid database file header. The FILE SIZE property is incorrect. (Microsoft SQL Server, Error: 5172).
DBCC CHECKB reported database consistency errors.
Could not open File Control Bank (FCB) for invalid file ID.
SQL Server detected a logical consistency-based I/O error: incorrect checksum.
SQL Server detected a logical consistency-based I/O error: torn page.
Corruption in metadata damages the system’s procedures, functions, stored, views, o stored procedures.
Page level corruption in SQL Server abruptly stops users to open the file pages of database.
When database (msdb) then there might be that your database encountered "Microsoft SQL Server, Error: 926."
SQL Server detected a logical consistency-based I/O error: incorrect pageid.
SQL Server detected a logical consistency-based I/O error:torn page
“Microsoft SQL Server, Error: 5172” error encounter when your header file size property is incorrect.
When you didn’t select your primary database then you might encounter "Microsoft SQL Server, Error: 5171" error.

Frequently asked questions about SQL recovery tool

Here are some common queries of our trusted customers related to the SQL recovery tool’s features, working procedure, and more.

How to repair corrupt SQL database using Kernel for SQL Database Recovery?

Users can recover SQL Server database using the following easy steps:

Download the Kernel for SQL Database recovery tool.
Install and launch the software.
Select the corrupt MDF file.
MDF file recovery software detects the SQL version automatically; if the file is highly corrupted, the user can select the SQL version and recovery mode.
Click on Recover to scan the database to retrieve objects. Users can now see all recoverable objects like tables, views, stored procedures, rules, keys, triggers, etc.
After this, users can save the data. There are 2 ways to save the data:-first on the disk as SQL batch Script, and the second on a live SQL server.
Select the saving mode and follow the instructions to restore the data.

Can I recover lost database objects after an SQL database corruption?

Yes, you can. SQL Recovery software allows effortless recovery of lost database objects from corrupt MDF/NDF files. It retrieves all of the database objects, such as tables, triggers, rules, deleted records, etc., with their original properties and structure.

Can the software identify the version of SQL Server?

Yes, it can. The SQL database recovery software features a smart auto-detect function that allows you to automatically detect the version of the SQL database before the recovery.

Can I verify the recovered database components before saving them?

Yes, you can. This SQL Repair tool offers an inbuilt preview facility wherein you can view all database components before saving them. This preview facility is also available in the free demo version, that makes it easier for you to evaluate before purchasing the paid version.

Does the tool require a Live SQL Server environment to recover MDF file objects?

No. SQL Recovery tool does not require a live server environment to recover database objects from SQL Server. However, it would require the environment to save/export the recovered objects to SQL Server.

Is there any database file size limitation?

No. The SQL database repair tool performs SQL Recovery from any size of MDF and NDF files. There is no file-size restriction for SQL recovery.

Does the demo version show a complete preview of all database objects?

Yes, it does. The demo version is a free tool to evaluate software performance, before purchasing the licensed software. However, to save the recovered database objects, you need to purchase the licensed version.

Can I get the deleted records back as well?

Yes, definitely. The SQL database recovery software integrates a separate option meant to be selected when the user wants to recover deleted records .

Please elaborate on the second saving option, i.e., SQL Script (Batch file) in this SQL recovery software.

Apart from saving the recovered SQL data to a live SQL Server, users can save the recovered data into SQL Script at the specified system location. This file includes a commit.bat file, which you can use to transfer the SQL data to the server easily.

I have some tables that have empty cells. How will they behave at the time of recovery?

The tool does not change the structure and content of the recovered tables. You will see each cell in the exact condition as it was in the database.

I had the SQL database files from SQL Server 2012. Can I save them in the latest SQL Server 2019?

The SQL database recovery tool supports the SQL database files from all these versions of SQL Server. So, you can save the files in any of them.

Is there any alteration in the recovered SQL database objects after the process?

No. The integrity of SQL database objects is well-maintained throughout the process, even after saving to the desired destination.

How to run SQL Script (.bat file) in the SQL Server?

Here is the step-by-step process to run SQL Script (.bat file) in the SQL Server:

Step 1: Open the Command Prompt and run Command cd\ on.
Step 2: Select and copy DATABASENAME.bat file folder path.
Step 3: Type cd “Folder path location” in CMD prompt and tap Enter key.
Step 4: Type databasename.bat file to view help info like:
- C:\Users\Steve\Desktop\Kernel_Travel_10_29_2012_12_25_19>travel.bat Syntax: <batch file path> [<user name> <password>] <server name> <database name>
- Here are some options:
- Batch file path: path of batch file which will run the exported SQL scripts.
- User name password: user name and password for SQL Server (for SQL Server Authentication).
- Server name: instance of SQL Server to which to connect
- Database name: name of database to which data will be exported
Step 5: Create a new database into SQL server.
Step 6: Type following command on command prompt:
<batch file path> [<user name> <password>] <server name> <database name> [ ..optional field...] username and password are optional <batch file path> <server name> <database name> sufficient hit enter ex. travel.bat kernel24\SQL2000 export_demo.....hit enter.
After applying this command, you can easily export .sql file script in SQL Server.

How can I upgrade the tool from the free evaluation version to the full version?

Follow these simple steps to upgrade your SQL recovery free evaluation version to the full version.

On the Evaluation version interface, click the Buy Online icon and purchase the desired license online, providing the required details in the opened HTML page.
After purchasing the license, you will get the activation details to the email address you provided during the purchase.
In the evaluation version of the tool, go to Help > Activate product and enter the activation credentials you got on email to upgrade it to the full version.