How To Fix RS_DB_DB6011 - You cannot select all key fields for MDC

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_DB_DB6 - DB6-Specific Messages in SAP BW

• Message number: 011

• Message text: You cannot select all key fields for MDC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_DB_DB6011 - You cannot select all key fields for MDC ?

  The SAP error message RS_DB_DB6011, which states "You cannot select all key fields for MDC," typically occurs in the context of using the SAP BW (Business Warehouse) or SAP HANA systems when working with Multi-Dimensional Cubes (MDC). This error indicates that there is an issue with the selection of key fields in a query or data model.
  Cause:
  The error is generally caused by the following reasons:
  
  
  Key Field Selection: In a Multi-Dimensional Cube, all key fields cannot be selected simultaneously. This is because selecting all key fields would lead to a situation where the system cannot determine a unique record to return, as all key fields are used to define the uniqueness of the data.
  
  
  Query Design: The query or data model may have been designed incorrectly, where all key fields are included in the selection criteria.
  
  
  Data Model Constraints: The underlying data model may have constraints that prevent the selection of all key fields at once.
  
  
  Solution:
  To resolve the RS_DB_DB6011 error, you can take the following steps:
  
  
  Review Key Fields: Check the key fields defined in your data model or query. Ensure that you are not selecting all key fields at the same time. Instead, select only the necessary key fields that are required for your analysis.
  
  
  Modify Query: If you are using a query in SAP BW, modify the query to exclude some of the key fields from the selection. You can do this by:
  
  Opening the query in the Query Designer.
  Removing one or more key fields from the selection criteria.
  
  
  
  Test the Query: After making changes, test the query to ensure that it runs without errors and returns the expected results.
  
  
  Consult Documentation: If you are unsure about which fields to select, refer to the SAP documentation or consult with your SAP BW administrator for guidance on the appropriate key fields for your specific data model.
  
  
  Check for Updates: Ensure that your SAP system is up to date, as there may be patches or updates that address known issues related to this error.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to this error message. SAP frequently publishes notes that provide solutions or workarounds for known issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Documentation: Review the SAP BW or SAP HANA documentation for best practices on designing queries and data models, especially regarding key field selection.
  
  By following these steps, you should be able to resolve the RS_DB_DB6011 error and successfully run your queries or data models in SAP.