Sql server ошибка 3624

At times, when SQL Administrator tries to move the database from one SQL server to another, they may encounter the following error message:

Location: statutil.cpp:4128
Expression: iKey < m_statBlob.GetHeader()->GetKeyCount()
SPID: 59 Process ID: 1732
Msg 3624, Level 20, State 1, Line 1
A system assertion check has failed. Check the SQL Server error log for details. Typically, an assertion failure is caused by a software bug or data corruption. To check for database corruption, consider running DBCC CHECKDB. If you agreed to send dumps to Microsoft during setup, a mini dump will be sent to Microsoft. An update might be available from Microsoft in the latest Service Pack or in a QFE from Technical Support.
Msg 0, Level 20, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.

Reasons for Error 3624

1. The Query derives data by means of the JOIN statement for two or more tables
2. Data compression enabled for only one table
3. Clustered Index key available on a column of the table
4. The column length in one table differs from column length on other tables
5. ON-filter enabled for the column
6. Either the SQL server performs an operation with LOOP JOIN join-hint or this hint is used by Query

The result is that the length of key data is bigger than the length of the compressed key value buffer, thus causing the “SQL Database Error 3624 – a system assertion check has failed”. However, the assertion failure may also be caused due to a software bug or corruption in the database.

Try to find the cause of the error by running the DBCC CHECKDB command and work to resolve the error with most suitable SQL Database recovery option.

How to Resolve SQL Database Error 3624

1. Check Database consistency: DBCC CHECKDB command lets you analyze the exact cause of the error, for example, whether the error is caused due to database corruption or due to a bug in the software’s previous release. Database corruption can be repaired but up to a certain level only.
2. Restore Database from Backup: In case the corruption is too high, try to restore the database from backup, however, check the status before restoring the database from backup. Backup should be up-to-date for restoration and not available in any of the following forms:
   • Not Up-to-date and old: In case the backup is 15 days old then the database for 15 days is not available
   • Not corrupt: Corruption in database backup will not lead to proper restoration. Even if the database is restored from backup, it cannot be used further, due to chances of further corruption
   • Database Backup not available: Database backup is not implemented. Some organizations do not invest their resources in backup and suffer when crises arise.
3. Apply Patches: Assertion error is generally caused due to bugs in the software and fixed with service pack releases. Patching the server with the latest service pack helps in removing the bug-related error.

What If Nothing Works?

If performing the above steps fail to resolve the “SQL Database Error 3624 – A system assertion check has failed”, then try to fix the issue using SQL Recovery software. Use Stellar Repair for MS SQL Software to recover the database and fix the SQL error 3624. The software is available in different versions – Technician, Platinum, and all-in-one Stellar Database Toolkit.

• Technician version consists of one software which is used to repair the corrupt SQL database.
• Platinum version consists of two software. One of these software repairs the corrupt MDF file and restores the SQL database. The other software recovers database from the corrupt backup file.
• Stellar Toolkit for MS SQL is available as a bundle of 3-software – one repairs corrupt SQL database; second restores the database from damaged SQL database backup file and SQL Password Recovery recovers SQL Server database-password when the user forgets the password.

Deploy the right version – Technician, Platinum or Toolkit and start resolving SQL related errors and fixes.

Conclusion

SQL Database error 3624 arises when MDF and NDF files get affected due to a bug or any database corruption. Microsoft releases patches from time to time to help resolve the software bugs. These updates are applied as software extensions. SQL database should not be in a dormant stage for long and most of the time the updated backup is also not available. In that case, installing and recovering SQL Database from Stellar Repair for MS SQL software is the right solution.

SQL Server

Raj |
Modified: July 12th, 2023 | 7 Minutes Reading

While running a Transaction-SQL query in SQL Server, sometimes users get an unexpected SQL Database Error 3624. Thus, considering the needs of users to resolve this error, today we have come up with this write-up. Here we will discuss the causes and ways that can resolve this error easily.

Introducing SQL Database Error 3624

SQL Server is one of the most reliable software and this has brought it up in many mid-scale associations. It is a widely used prominent database management service that creates tables, stored procedures, executes queries, retrieves data, deletes records, maintains transaction logs, etc. Although SQL Server is highly authentic, sometimes, it encounters some severe issues.

Many users face SQL Server error 3624 frequently. It marks the database as SUSPECT. When the SQL administrator tries to shift the database from one SQL server to another, then, it displays the error in the following screenshot:

SQL database error 3624 error means the system assertion check is failed and now, to resolve this error users have to check the SQL Server error log. The main cause of assertion failure is a software bug or maybe corruption in the database.

For checking the corruption in the database, run the DBCC CHECKDB command. An update from Microsoft may be available in the latest Service Pack or it can be received in a QFE from Technical Support.
Msg 0, Level 20, State 0, Line 0

Why SQL Error Code 3624 Arises?

The main cause of why a system assertion check has failed is bulk data insertion in the SQL Server. Which consequently damages the log file of that specific database. Eventually, it marks the database as SUSPECT. ‌SQL Server 3624 error can occur in any of the following circumstances:

Case-1. If a TABLOCK query is used in SQL.

Case-2. On-Filter is activated for any column.

Case-3. Different column lengths of data tables.

Case-4. When a table contains a non-clustered index.

Case-5. Data compression is enabled for a single table.

Case-6. Prior bulk data insertion and table not truncated.

Case-7. When a column in the table has a clustered index key.

Case-8. When SQL performs a LOOP JOIN or join-hint is used by a query.

Is This a Data Loss Warning Error?

We cannot say that this error means data loss, but there are few chances of data loss after prompting this error. MS SQL Server manages the database via its own strategy of mirroring it to avoid data loss. While any user works with Full Recovery Model then, they must be working with this strategy that creates an accurate replica of the database.

Both database copies are administered by different servers, where the first is on principle and another is on the mirror server. This error mainly affects the mirroring of the database. Thus, there is a risk of data loss. Moreover, the error suspends that mirror database and entire data is present only in the principal database.

How to Resolve SQL Database Error 3624?

In this section, we give an overview of all the easy and probable solutions that can easily fix this error code. Moreover, the good news is that here are quite a few ways a user can adopt to make the problem go away.

The tried and tested DBCC CHECK DB mechanism along with the SQL queries act as a generalized issue solver.

If that is too technical for you try restoring a previous version of the Server. Make sure it is the one before you got a system assertion check has failed alert.

In case you don’t have a healthy backup available update to the latest SQL patch released by Microsoft. However, users should be aware that it does not fix their current problem but only prevents it from happening in the future.

With the introduction out of the way, now let’s take a look at each method in detail

Technique 1: Checking the Consistency of the Database

The DBCC CHECKDB command allows users to examine the exact reason for error 3624. We can understand it via an example: the error occurs either due to corruption in a database or by any bug in the application’s previous release.

The DBBC CHECKDB command can repair database corruption, but only up to a certain stage. Here is the code snippent for users convenience:

DBCC CHECKDB
[ ( User_Database_Name | User_Database_ID| 0 [ , NOINDEX | , {REPAIR_ALLOW_DATA_LOSS | REPAIR_FAST | REPAIR_REBUILD} ] ) ]
[ WITH {[ ALL_ERRORMSGS ][ , EXTENDED_LOGICAL_CHECKS ][ , NO_INFOMSGS ]
[ , TABLOCK ][ , ESTIMATEONLY ][ , { PHYSICAL_ONLY | DATA_PURITY } ]
[ , MAXDOP = number_of_processors ]}]]

Note: It is a generalized code make changes to it according to your own situation.

Technique 2: Retrieve Data from the Backup to Resolve SQL Error 3624 

When the corruption level is too high in the database, then, users must try to restore the data from the backup. But before that, verify the status of restoring a database from the backup. The database backup must not exist in any of the following forms:

• Not so latest and old: If the backup of the database is 15 days old then, the data for 15 days is not available.
• Not corrupted: If the database is corrupt, it will not lead to an appropriate restoration. In case you have restored the database from backup, it cannot be used for further operations.
• Absence of Database Backup: The backup of the database has no implementations. Most of the users do not take a backup of the database. Then, they undergo while this error arises.

Technique 3: Use patches To Fix This SQL Server Issue

SQL Database error 3624 usually occurs because of bugs in the software and these can be fixed via service pack releases. Additionally, patching the SQL server with an up-to-date service pack can resolve the bugs in the software and this error can be fixed.

These are all manual ways that can fix SQL error 3624, but there are some limitations to these methods. Moreover, there is no guarantee that this error will resolve completely after applying the mentioned techniques.

Automated Tool For Removing SQL Error Code 3624

As we know now that, the main cause of this problem is corruption in the SQL server database. So, all we have to do is, fix this corruption and restore the database to its healthy form.  

Now, the question arises of how to fix the corruption in the SQL database. Well, do not worry! A guaranteed solution to recover a corrupt SQL database is none other than FreeViewer SQL Recovery Tool. It is one of the most trusted and reliable solutions for recovering the database. Use the steps given below and make ‌SQL error 3624 a thing of the past:

Download Now Purchase Now

Step-1. Obtain the tool and run it on your computer.

Step-2. Locate the damaged MDF file in the tool itself.

Step-3. Select the Advanced Scan option for a full recovery from SQL Server error 3624.

Step-4. Put in or change all the details according to your preferences.

Step-5. Select the target location for the recovered file and press “Export”.

Additional Info: The above-mentioned tool can resolve SQL Server Header Error 5172 also

Conclusion

Resolving ‌SQL error 3624 is not easier said than done especially if you use the manual methods. Therefore, follow the instructions mentioned in this guide to resolve the issue. Moreover, users can utilize a professional solution so that a system assertion check has failed alert does not occur again.

SQL error 3624 is one such frequent error that is faced by many users. It marks the database as SUSPECT. While users are working on Microsoft SQL Server and they run Transaction-SQL Query, there are chances that “SQL server Error 3624” aka “a system assertion check has failed” may occur. If an administrator attempts to export the database from a SQL Server to another SQL Server, an error may arise where the database stops working. And an error message pop-ups.

ERROR MESSAGE

Following error message is displayed:

In this guide, we will give answer the queries “ How to solve SQL Error 3624  and “SQL 2016 a system assertion check has failed”. Whereas, before moving towards the solutions we need to know the proper reasons behind this error.

Why SQL  Error 3624 arises?

The main cause of SQL Server Error 3624 is bulk data insertion in the SQL Server that consequently damages the log file of that specific database. Eventually, it marks the database as SUSPECT. This error can occur in the following circumstances:

• When a table contains a non-clustered index
• A column of table has clustered index key
• When a TABLOCK query is used in SQL
• Data compression enabled for a single table
• On-Filter is activated for any column
• Different column length of data tables
• If there is bulk data insertion and table not truncated
• SQL performs a LOOP JOIN join-hint or it is used by query

The result is that the length of the key data is bigger than the length of the compressed key-value buffer. Sometimes this error occurs due to the software bug or corruption.

Try to find the actual cause of the error by running the DBCC CHECKDB command and work to resolve the error with the most suitable SQL Database recovery option.

Manual Approaches to resolve SQL Error 3624

There are several manual methods present to resolve this error. Some of them are listed below:

Method 1. Check Database consistency 

DBCC CHECKDB command can be used to analyze the exact cause of error, for example, whether the error is caused due to database corruption or due to bug in software’s previous release.SQL Database corruption can be repaired by using it, but up to a certain level only.

Method 2.Restore with Backup 

In case the corruption is too high, try to restore the database from backup, however, check the status before restoring the database from backup. Backup should be up-to-date for restoration and not available in any of the following forms:

• If the backup is 15 days old then the database for 15 days is not available.

• If database backup is not implemented. Some organizations do not invest their resources in backup and suffer when the crises arise.

Method 3.Apply patches

Assertion failed error is generally caused due to bugs in the software and can be fixed with service pack releases. Patching the server with the latest service pack helps in removing the bug related error. 

Limitation of using manual approaches:

It is obvious that technical expertise is required to follow manual approaches. And if you are a novice user then you can find difficulty to understands steps. Also, you can lose the data if you don’t know about steps properly. In such a case, you are advised to use a Professional Tool to fix SQL Error 3624.

Automated or Professional Solution

To overcome all the limitations of manual methods you can go with an automated solution which is an SQL Database Recovery Software. This recovery software can perform recovery with the utmost accuracy and restore SQL database contents. It is the best solution to fix “A system assertion check has failed – SQL server error 3624”. This software is compatible with all version of SQL server. Therefore, this can be used to solve SQL 2016 a system assertion check has failed error or any version of SQL Server.

Final Words

This guide gives you all details about SQL Server Error 3624 – a system assertion check has failed. All possible reasons and manual methods to resolve this issue discussed above. But there is technical expertise required to follow manual approaches. Therefore, we recommend you to use SQL Database Recovery Software. I hope you will find this blog useful to solve your query. If you have any queries regarding any step then feel free to contact me.

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