How To Fix RSRTS_CDS126 - Parameter &1 binding: Unknown alias &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 126

• Message text: Parameter &1 binding: Unknown alias &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS126 - Parameter &1 binding: Unknown alias &2 ?

  The SAP error message RSRTS_CDS126 with the description "Parameter &1 binding: Unknown alias &2" typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with CDS (Core Data Services) views or queries. This error indicates that there is an issue with the binding of parameters in a query, specifically that an alias used in the query is not recognized.
  Cause:
  
  Incorrect Alias: The alias specified in the query does not match any of the defined aliases in the CDS view or the underlying data model.
  Parameter Mismatch: The parameter being passed to the query does not correspond to the expected parameter in the CDS view.
  Changes in Data Model: If the underlying data model has been changed (e.g., fields renamed, aliases changed), it can lead to this error.
  Transport Issues: If the CDS view or the query was transported from one system to another, there might be inconsistencies in the data model.
  
  Solution:
  
  Check Alias Definitions: Verify that the alias used in the query is correctly defined in the CDS view. Ensure that there are no typos or discrepancies.
  Review Parameter Bindings: Ensure that the parameters being passed to the query match the expected parameters in the CDS view. Check for any changes in the parameter names or types.
  Update Query: If there have been changes to the underlying data model, update the query to reflect those changes. This may involve modifying the query to use the correct aliases or parameters.
  Re-activate CDS View: Sometimes, re-activating the CDS view can resolve issues related to inconsistencies. Go to the ABAP Development Tools (ADT) in Eclipse or the SAP GUI and re-activate the CDS view.
  Check Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate issues with the data model.
  Debugging: If the issue persists, consider debugging the query execution to trace where the binding fails.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any known issues or patches.
  Documentation: Review the SAP documentation on CDS views and parameter binding for best practices and guidelines.
  Community Forums: Engage with SAP community forums or SAP support for additional insights or similar cases.
  
  By following these steps, you should be able to identify and resolve the issue causing the RSRTS_CDS126 error in your SAP environment.