How To Fix DDLS238 - CASE (THEN): Maximum data type cannot be determined (&,&) (&,&)

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 238

• Message text: CASE (THEN): Maximum data type cannot be determined (&,&) (&,&)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS238 - CASE (THEN): Maximum data type cannot be determined (&,&) (&,&) ?

  The SAP error message DDLS238 indicates that there is an issue with determining the maximum data type for a CASE statement in a SQL query or a data definition language (DDL) operation. This typically occurs when the CASE statement is used in a way that the SQL engine cannot infer a common data type for the different branches of the CASE expression.
  
  Cause:
  The error can arise due to several reasons:
  
  Inconsistent Data Types: The branches of the CASE statement return different data types that cannot be implicitly converted to a common type.
  NULL Values: If some branches return NULL and others return a specific data type, the SQL engine may struggle to determine the maximum data type.
  Complex Expressions: If the expressions used in the CASE statement are complex or involve different data types, it can lead to ambiguity.
  
  
  Solution:
  To resolve the DDLS238 error, you can take the following steps:
  
  
  Ensure Consistent Data Types: Make sure