Error 9004 SQL Server Attach Database Severity 23 State 6 Issue
SQL Error 9004 in SQL Server states that the SQL Log file or LDF is damaged along with its data. Inconsistent states & several reasons are responsible for the same. Let’s read more about this to get a clear insight.
Facing errors in SQL is not something new. SQL often displays errors due to any issues in the database to alert users in advance. The Error 9004 SQL Server is one of them that occurs while attaching the database. This blog is entirely focused on fixing this error & this is why we are going to explain the best solutions for the same, Moreover, along with the manual & automated solutions, the critical causes that contribute to getting this error in the database are also mentioned.
Before solving this Microsoft SQL Server error 9004 severity 23 state 6 issue, we must understand the critical errors. This can be beneficial in solving this “an error occurred while processing the log for database” message. We all are aware of the fact that SQL Database MDF file consists of various database objects. These objects can be tables, views, stored procedures, rules, triggers, records, etc. This error mainly occurs due to the corruption issues in the log files.
To know the causes in-depth, let’s quickly look at the causes followed by the solutions.
Causes of Microsoft SQL Server Error 9004 in Database
If we talk as a whole, we can say when the log file is corrupt, having problems with the log file headers, or the virtual log file (VLF) is corrupted, the system shows this SQL error 9004 : an error occurred when attaching the database. Now, let’s have the major factors that contribute to this error.
- Corrupt Log File: Having corruption issues is the most common & major cause for users to get this critical error in their database. Therefore, users need to simply check for log file corruption from time to time.
- Security Restrictions: Users need to execute SQL restore error 9004 task because antivirus or firewall also interfere with the usual operations. Therefore, users should not set security standards aggressively
- Software & Hardware Issues: Disk or Storage Errors, and hardware component failures do contribute to this critical error. Moreover, Software bugs, glitches, incompatibility issues of updates, etc might also contribute to it.
- Failed Write Operations: This Microsoft SQL error 9004 can also arise due to failed or even incomplete write operations for the log file. Therefore, users must take care of this as well while executing any actions.
- Improper Database Detach/Attach: Users must pay attention during attaching or detaching the database. The reason behind this is that most of the time this error occurs during this time only.
Also Read: How to Solve SQL Server Error 3417 Issue
All Available Solutions to Fix SQL Error 9004 Attaching Database
Now, we have three manual methods that can kind of solve this error for users. However, the best solution can be the automated method which is also mentioned below. The severity of this error can be a major deciding factor for the right method. In a nutshell, we can advise that for bigger databases, users must use the automated solution. Whereas, the manual ones can be used for small-scale databases. All of the four methods to fix Microsoft SQL Server error 9004 are:
- Backup Restore Method
- T-SQL Query Method
- Attach CMD Method
- Third-Party Tool
Fix Error by Restoring the Entire Database From Backup
The very first method that we have is to restore SQL Server database from BAK file manually. For this task, users must have an active SQL server license with SQL environment & SSMS in the system. Follow the below steps to get the task done.
- Open SSMS (SQL Server Management Studio) begin
- Go to Object Explorer > Right Click Database > Right Click Database >Tasks > Backup
- Choose Full Backup > Enter Destination > Click OK to fix MS SQL error 9004
For Restoring Database
- Right-click Database > Click on the Restore Database option
- Select Database > Choose Backup file > Click verify Media > Click Ok
CHECKDB T-SQL Query to Fix Error 9004 SQL Server Issue
Now, this solution includes the DBCC CHECKDB command in use to fix these critical errors. However, this might fail sometimes & if the DBCC CHECKDB job fails in SQL Server, users should use the software. If your system shows an error occurred while processing the log for database, ROLLBACK command might help.
Run the subsequent command to execute this T-SQL query method as shown below:
USE master; ALTER DATABASE SYS SET SINGLE_USER WITH ROLLBACK IMMEDIATE; GO DBCC CHECKDB (SYS, REPAIR_FAST) WITH NO_INFOMSGS; GO ALTER DATABASE SYS SET MULTI_USER; GO
After running the query, the system will result as shown in the below image.
Now, users need to understand the meaning of the above command to know the concepts in detail.
- To fix SQL Server error 9004 severity 23 state 6 issues, first we need to put the database in single-user mode. This is to ensure that no other user interferes during the process.
- Running the command with Repair_Fast mode means that users need to quickly fix the issues. This option only fixes the minor issues in the database.
- After the task is done, we need to put the database back in the multi-user mode, so that the users can access the database.
Other Options:
- Repair_Rebuild – This command rebuilds the entire database from scratch & also takes more time.
- Repair_Allow_Data_Loss – This command is the middle option for users but as the name suggests, there are chances of data loss here.
Create Database CMD with FOR ATTACH_REBUILD_LOG Option Method
Now, moving ahead, if users want, they can recreate the database along with its transaction log file. It can fix the “an error occurred when attaching the database” error. Therefore, they can eliminate the entire error from its root. However, this procedure has its complications in some cases that users might face later.
Let’s have a look at the syntax to fix SQL Server error number 9004 this way:
USE [master] GO CREATE DATABASE [SYSNEW] ON ( FILENAME = N’c:\data\sysnew.mdf’ ) FOR ATTACH_REBUILD_LOG GO
After running this command to fix error 9004 SQL Server issue, users can get the desired results they are in search of. But before that, we need to understand what we did in this command.
Here, we used the master database first. With that, we created a database and then rebuilt the database log file. Now, if users are still facing issues, they can rely on the infallible automated solutions.
Fix SQL Server Error 9004 Attaching Database with the Best Tool
If users are fed up with complex manual solutions or they want a much easier solution to their problems, they can rely on the automated SQL Server Recovery Tool in use. This mighty software is packed with an endless number of advanced features that can help users get rid of the error 9004 SQL Server for sure.
Download the tool & then follow the Quick Steps to solve this 9004 SQL error.
Step-1. Open Software and Click on the Open button
Step-2. Browse and Add the MDF files of the database
Step-3. Select from the Quick or Advanced Scan mode
Step-4. Enter the Destination for storing the healthy files
Step-5. Click on Export/Save to fix SQL Server error 9004
Features:
- Repair tables, triggers, stored procedures, rules, views, records, etc.
- Offers two scan modes based on the corruption level of the data files.
- Auto-detects SQL Server versions & also provides the manual option.
- Total three export modes are also there to fix SQL error number 9004.
- SQL Server Database (Running)
- SQL Server Script file
- CSV Data file
- It can export schema only as well as schema with data if users need it.
- Compatible with Windows 11, 10, 8, 7, and Windows Server 2012, 2016, etc.
- Supports SQL 2000, 2005, 2008/2008 R2, 2012, 2014, 2016, 2017, 2019, & 2022.
Apart from this, there are several other features that users can further learn about from the Free DEMO version of the software.
Bringing It All Together
After learning how to fix the error 9004 SQL Server database, users can execute the operation with their preferred solution. All of the solutions mentioned will work fine depending upon the requirements of users.
However, the software can work in all of the scenarios without any critical errors. Executing the steps to fix Microsoft SQL Server error 9004 carefully & taking care of the causes can help users solve the problem & probably not get such errors in the system again.