How To Fix RSRTS_CDS015 - CASE clause (of simple case statement) must be a characteristic

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 015

• Message text: CASE clause (of simple case statement) must be a characteristic

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS015 - CASE clause (of simple case statement) must be a characteristic ?

  The SAP error message RSRTS_CDS015 indicates that there is an issue with the CASE clause in a simple CASE statement within a calculation view or a query in SAP HANA. Specifically, the error states that the CASE clause must be a characteristic, meaning that the expression used in the CASE statement is not recognized as a valid characteristic.
  Cause:
  
  Invalid Data Type: The expression used in the CASE statement is not of a characteristic type. For example, it might be using a measure or an aggregate function instead of a characteristic.
  Incorrect Syntax: There may be a syntax error in the CASE statement that prevents it from being recognized correctly.
  Contextual Misuse: The CASE statement is being used in a context where it is not allowed or expected, such as in a measure context instead of a characteristic context.
  
  Solution:
  
  
  Check the Expression: Ensure that the expression used in the CASE statement is a valid characteristic. Characteristics are typically dimensions or attributes that can be used for filtering or grouping data.
  Example of a valid CASE statement:
  CASE 
      WHEN characteristic = 'Value1' THEN 'Result1'
      WHEN characteristic = 'Value2' THEN 'Result2'
      ELSE 'DefaultResult'
  END
  
  
  Review Syntax: Double-check the syntax of your CASE statement. Ensure that it follows the correct structure and that all necessary components are included.
  
  
  Use Characteristics: If you are trying to use a measure or an aggregate function, consider restructuring your logic to use characteristics instead. If you need to perform calculations based on measures, consider using them in a different context or using a different approach.
  
  
  Testing: Test the modified CASE statement in a simpler context to ensure it works as expected before integrating it back into the larger query or calculation view.
  
  
  Related Information:
  
  SAP HANA Documentation: Refer to the official SAP HANA documentation for detailed information on using CASE statements and the requirements for characteristics and measures.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Debugging Tools: Use debugging tools available in SAP HANA Studio or SAP Web IDE to step through your query and identify where the error occurs.
  
  By following these steps, you should be able to resolve the RSRTS_CDS015 error and successfully implement your CASE statement in SAP HANA.