How To Fix RSDA_SDB005 - Cannot open DB connection &1 (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA_SDB - Messages for near-line reference implementation for MaxDB

• Message number: 005

• Message text: Cannot open DB connection &1 (internal 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 RSDA_SDB005 - Cannot open DB connection &1 (internal error) ?

  The SAP error message RSDA_SDB005 Cannot open DB connection &1 (internal error) typically indicates that there is an issue with the database connection in the context of SAP Data Services or SAP BW (Business Warehouse). This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Database Connectivity Issues: The database server may be down, or there may be network issues preventing the SAP system from connecting to the database.
  Configuration Errors: Incorrect configuration settings in the database connection parameters (e.g., hostname, port, username, password).
  Database Driver Issues: The database driver may not be installed correctly or may be incompatible with the version of SAP you are using.
  Resource Limitations: The database may be running out of resources (e.g., connections, memory).
  Authorization Issues: The user credentials used to connect to the database may not have the necessary permissions.
  Internal Errors: There may be internal errors within the SAP system or the database that are not directly related to the connection settings.
  
  Solutions:
  
  Check Database Status: Ensure that the database server is up and running. You can do this by trying to connect to the database using a database client or command line.
  Verify Connection Parameters: Double-check the connection parameters in the SAP system (transaction code DBACOCKPIT or relevant configuration settings) to ensure they are correct.
  Test Database Connection: Use the database connection test feature in SAP to verify that the connection can be established successfully.
  Review Logs: Check the SAP application logs (transaction code SM21) and the database logs for any additional error messages that may provide more context.
  Check User Permissions: Ensure that the user account being used to connect to the database has the necessary permissions to access the database.
  Update Database Drivers: If you suspect a driver issue, ensure that you have the correct and latest database drivers installed.
  Resource Monitoring: Monitor the database server for resource usage and ensure it is not hitting any limits (e.g., maximum connections).
  Restart Services: Sometimes, restarting the SAP application server or the database server can resolve transient issues.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for your specific version of SAP and the database you are using for any known issues or configuration guidelines.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.