How To Fix DDLS228 - Type of parameter & is unknown or not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 228

• Message text: Type of parameter & is unknown or not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS228 - Type of parameter & is unknown or not supported ?

  The SAP error message DDLS228 indicates that there is an issue with a parameter in a Data Definition Language (DDL) statement, specifically that the type of the parameter is either unknown or not supported. This error typically arises during the execution of DDL operations, such as creating or altering database objects.
  Causes:
  
  Unsupported Data Type: The parameter type specified in the DDL statement may not be recognized by the SAP system or the underlying database.
  Typographical Errors: There may be a typo in the parameter name or type, leading to the system not recognizing it.
  Database Compatibility: The DDL statement may be using features or data types that are not supported by the version of the database you are using.
  Incorrect Syntax: The DDL statement may have incorrect syntax, which can lead to the system being unable to interpret the parameter type correctly.
  Missing or Incorrect Definitions: If the parameter is supposed to reference a type or structure that is not defined or is incorrectly defined, this error can occur.
  
  Solutions:
  
  Check Data Types: Verify that the data types used in the DDL statement are supported by the SAP system and the underlying database. Refer to the documentation for the specific database version you are using.
  Review Syntax: Ensure that the DDL statement is correctly formatted and adheres to the syntax rules of the database.
  Correct Typographical Errors: Look for any typos in the parameter names or types and correct them.
  Consult Documentation: Review the SAP and database documentation for any changes or limitations regarding data types and DDL operations.
  Test with Simplified Statements: If possible, simplify the DDL statement to isolate the issue. Start with a basic version and gradually add complexity to identify the problematic part.
  Check for Updates: Ensure that your SAP system and database are up to date, as updates may include fixes for known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the DDLS228 error. SAP Notes often provide specific guidance or patches for known problems.
  Database Documentation: Refer to the documentation for the specific database you are using (e.g., HANA, Oracle, SQL Server) for details on supported data types and DDL syntax.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the DDLS228 error and implement a suitable solution.