How To Fix SV646 - Internal database interface error

SAP Error Message - Details

• Message type: E = Error

• Message class: SV - View Maintenance: Customize Messages

• Message number: 646

• Message text: Internal database interface error

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SV646 - Internal database interface error ?

  The SAP error message SV646, which indicates an "Internal database interface error," typically arises from issues related to the database connection or the internal handling of database operations within the SAP system. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  
  Database Connection Issues: Problems with the connection between the SAP application server and the database server can lead to this error. This could be due to network issues, database server downtime, or incorrect connection parameters.
  
  
  Database Locking: If a database table is locked by another transaction, it may cause this error when another transaction tries to access it.
  
  
  Corrupted Database Objects: Corruption in database tables or indexes can lead to internal errors when the system tries to access or manipulate these objects.
  
  
  Insufficient Resources: Lack of memory or other system resources on the database server can cause it to fail to process requests properly.
  
  
  Configuration Issues: Incorrect configuration settings in the SAP system or the database can lead to communication problems.
  
  
  Software Bugs: There may be bugs in the SAP software or the database management system that trigger this error under certain conditions.
  
  
  Solutions:
  
  
  Check Database Connection: Verify that the database server is up and running and that the connection parameters in the SAP system are correct. You can use transaction codes like DB02 to check the database status.
  
  
  Review Lock Entries: Use transaction SM12 to check for any lock entries that might be causing the issue. If necessary, you can delete the lock entries, but be cautious as this may affect other users.
  
  
  Database Consistency Check: Run consistency checks on the database using transaction DB02 or relevant database tools to identify and repair any corrupted objects.
  
  
  Monitor System Resources: Check the resource usage on both the SAP application server and the database server. Ensure that there is sufficient memory, CPU, and disk space available.
  
  
  Review Configuration Settings: Ensure that the configuration settings for both the SAP system and the database are correct. This includes checking parameters related to memory allocation, connection pooling, and timeout settings.
  
  
  Update Software: Ensure that both the SAP system and the database management system are up to date with the latest patches and updates, as these may contain fixes for known issues.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. SAP Notes often provide detailed troubleshooting steps and solutions.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs and system configurations.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to gather more information about the error.
  Database Logs: Check the database logs for any error messages or warnings that may provide additional context for the issue.
  System Monitoring Tools: Utilize SAP's monitoring tools to keep an eye on system performance and identify potential bottlenecks.
  
  By following these steps, you should be able to diagnose and resolve the SV646 error in your SAP environment.