How To Fix SADA805 - There is no SAP system instance on the database host

SAP Error Message - Details

• Message type: E = Error

• Message class: SADA - CCMS: SAP DB Porting and Development

• Message number: 805

• Message text: There is no SAP system instance on the database host

What causes this issue?

The program terminated because no SAP system instance is installed on
the database host.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Install a small SAP system instance on the database host.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADA805 - There is no SAP system instance on the database host ?

  The SAP error message SADA805 indicates that there is no SAP system instance available on the specified database host. This error typically arises in scenarios where the SAP system is unable to connect to the database or when the database instance is not properly configured or running.
  Causes:
  
  Database Instance Not Running: The database instance that the SAP system is supposed to connect to may not be started.
  Incorrect Configuration: The configuration settings in the SAP system may not correctly point to the database instance.
  Network Issues: There may be network connectivity issues between the SAP application server and the database server.
  Database Hostname/IP Issues: The hostname or IP address specified in the SAP configuration may be incorrect or unreachable.
  Authorization Issues: The user credentials used to connect to the database may not have the necessary permissions.
  Database Service Not Registered: The database service may not be registered correctly in the SAP system.
  
  Solutions:
  
  Check Database Status: Ensure that the database instance is running. You can do this by logging into the database server and checking the status of the database service.
  Verify Configuration: Check the SAP system configuration (e.g., SAP Profile Parameters, DB Connection Settings) to ensure that it points to the correct database instance.
  Network Connectivity: Test the network connection between the SAP application server and the database server. You can use tools like ping or telnet to check connectivity.
  Check Hostname/IP: Verify that the hostname or IP address specified in the SAP configuration is correct and reachable.
  User Permissions: Ensure that the user credentials used for the database connection have the necessary permissions to access the database.
  Database Service Registration: If applicable, check that the database service is properly registered in the SAP system. You may need to use transaction codes like DBACOCKPIT or DB02 to check the database status.
  Review Logs: Check the SAP and database logs for any additional error messages that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to the official SAP documentation for your specific version of SAP and the database being used (e.g., Oracle, HANA, SQL Server) for configuration guidelines.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.