How To Fix SDDL_PARSER_MSG295 - Only "=" comparison in ON condition allowed in to-parent association

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 295

• Message text: Only "=" comparison in ON condition allowed in to-parent association

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG295 - Only "=" comparison in ON condition allowed in to-parent association ?

  The SAP error message SDDL_PARSER_MSG295 indicates that there is an issue with the way a to-parent association is defined in your SAP system. Specifically, this error arises when the ON condition of a to-parent association is using a comparison operator other than the equality operator (=). In the context of SAP, to-parent associations are used in the context of data modeling, particularly in the definition of associations between entities in the ABAP Dictionary or in Core Data Services (CDS) views.
  Cause:
  The error occurs because the syntax for defining a to-parent association requires that the ON condition must only use the equality operator (=). Any other comparison operators (like <, >, <=, >=, <>, etc.) are not allowed in this context.
  Solution:
  To resolve this error, you need to check the definition of the to-parent association in your data model or CDS view and ensure that the ON condition uses the equality operator. Here’s how you can do that:
  
  
  Open the Data Model or CDS View: Access the relevant data model or CDS view where the error is occurring.
  
  
  Locate the To-Parent Association: Find the specific to-parent association that is causing the error.
  
  
  Check the ON Condition: Review the ON condition of the association. Ensure that it is using the = operator for comparison. For example, if you have something like:
  ON parent.id > child.parent_id
  You need to change it to:
  ON parent.id = child.parent_id
  
  
  Save and Activate: After making the necessary changes, save your work and activate the data model or CDS view.
  
  
  Test: Run the query or application again to ensure that the error has been resolved.
  
  
  Related Information:
  
  Documentation: Refer to the SAP documentation on Core Data Services (CDS) and data modeling for more details on how to define associations correctly.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or updates related to this error message.
  Community Forums: If you continue to face issues, consider reaching out to SAP community forums or support for further assistance.
  
  By ensuring that your to-parent associations are defined correctly with the appropriate use of the equality operator, you should be able to resolve the SDDL_PARSER_MSG295 error.