How To Fix DDLS253 - In function &, only columns, literals and parameters allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 253

• Message text: In function &, only columns, literals and parameters allowed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS253 - In function &, only columns, literals and parameters allowed ?

  The SAP error message DDLS253 typically occurs in the context of ABAP programming or when working with database views or table definitions. The error message indicates that there is an issue with the SQL statement being executed, specifically that only columns, literals, and parameters are allowed in the specified function.
  Cause:
  The error is usually caused by one of the following issues:
  
  Invalid SQL Syntax: The SQL statement may contain expressions or functions that are not allowed in the context where they are being used.
  Incorrect Use of Functions: If you are trying to use a function or an operation that is not permitted in the specific part of the SQL statement, this error will be triggered.
  Misplaced Elements: You might be trying to use a calculated field or a subquery in a place where only direct column references, literals, or parameters are allowed.
  
  Solution:
  To resolve the DDLS253 error, consider the following steps:
  
  
  Review SQL Statement: Check the SQL statement for any invalid syntax or misplaced elements. Ensure that you are only using columns, literals, and parameters in the context where the error occurs.
  
  
  Use Allowed Elements: If you are using a function or expression, ensure that it is allowed in the context. For example, if you are in a SELECT statement, ensure that you are not trying to use a function in a place where only column names are expected.
  
  
  Refactor the Query: If necessary, refactor your SQL query to separate calculations or functions into a different part of the query where they are allowed. For example, you might need to use a subquery or a Common Table Expression (CTE) to perform calculations before using the results in the main query.
  
  
  Check Documentation: Refer to the SAP documentation or ABAP programming guidelines for the specific SQL syntax rules and restrictions that apply to the context you are working in.
  
  
  Debugging: If you are unsure where the error is occurring, use debugging tools to step through the code and identify the exact line or statement causing the issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  ABAP Documentation: Review the ABAP documentation for guidelines on SQL syntax and usage.
  Community Forums: Consider searching or posting in SAP community forums for additional insights or similar experiences from other developers.
  
  By following these steps, you should be able to identify the cause of the DDLS253 error and implement a solution to resolve it.