How To Fix DDLS171 - After CASE, currently only a table column is allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 171

• Message text: After CASE, currently only a table column is 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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS171 - After CASE, currently only a table column is allowed ?

  The SAP error message DDLS171 typically occurs when you are trying to use a CASE statement in a SQL query or a data definition language (DDL) statement in a way that is not supported by the SAP database. The error indicates that the CASE statement is being used incorrectly, and currently, only a table column is allowed in that context.
  
  Cause:
  The error arises from the following scenarios:
  
  Incorrect Usage of CASE: The CASE statement is being used in a context where it is not allowed, such as in a DDL statement or in a way that does not conform to the expected syntax.
  Database Compatibility: The specific database you are using (e.g., HANA, Oracle, etc.) may have limitations on how CASE statements can be used, especially in DDL contexts.
  Syntax Errors: There may be syntax errors in the SQL statement that lead to this error being triggered.
  
  
  Solution:
  To resolve the error, consider the following steps:
  
  
  Review