How To Fix DD_DBAL020 - Failed to read HANA system view &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DD_DBAL - ABAP Dictionary, Data Base Abstraction Layer

• Message number: 020

• Message text: Failed to read HANA system view &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 DD_DBAL020 - Failed to read HANA system view &1 ?

  The SAP error message DD_DBAL020 indicates that there was a failure in reading a HANA system view. This error can occur due to various reasons, and understanding the cause is essential for troubleshooting and resolving the issue. Here’s a breakdown of potential causes, solutions, and related information:
  Causes:
  
  Database Connectivity Issues: There may be problems with the connection between the SAP application and the HANA database.
  Authorization Issues: The user or service account may not have the necessary permissions to access the specific HANA system view.
  View Does Not Exist: The specified HANA system view may not exist or may have been deleted or renamed.
  Database Configuration Issues: There could be misconfigurations in the HANA database or the SAP system that prevent access to the view.
  HANA System Performance: If the HANA system is under heavy load or experiencing performance issues, it may not respond in time, leading to a timeout error.
  Version Compatibility: There may be compatibility issues between the SAP application version and the HANA database version.
  
  Solutions:
  
  
  Check Database Connectivity:
  
  Verify that the SAP system can connect to the HANA database. You can test the connection using transaction codes like DBACOCKPIT or DB02.
  
  
  
  Review User Authorizations:
  
  Ensure that the user or service account has the necessary permissions to access the HANA system view. You may need to grant additional roles or privileges.
  
  
  
  Verify the Existence of the View:
  
  Use HANA Studio or SQL commands to check if the specified system view exists. If it does not, you may need to recreate it or adjust your queries accordingly.
  
  
  
  Check HANA Database Configuration:
  
  Review the HANA database configuration settings to ensure they are correct. Look for any discrepancies that might affect access to system views.
  
  
  
  Monitor HANA System Performance:
  
  Check the performance metrics of the HANA system. If it is under heavy load, consider optimizing queries or increasing system resources.
  
  
  
  Update or Patch Systems:
  
  Ensure that both the SAP application and the HANA database are updated to the latest versions or patches to avoid compatibility issues.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for HANA and the specific SAP application you are using for more detailed information on system views and database connectivity.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as DBACOCKPIT, ST22, and SM21 for monitoring database performance and logs.
  
  By following these steps, you should be able to identify the cause of the DD_DBAL020 error and implement an appropriate solution. If the issue persists, consider reaching out to SAP support for further assistance.