How To Fix DDLS212 - CASE (&): CAST function does not supply a valid data type

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 212

• Message text: CASE (&): CAST function does not supply a valid data type

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 DDLS212 - CASE (&): CAST function does not supply a valid data type ?

  The SAP error message DDLS212 indicates that there is an issue with the use of the CAST function in a SQL statement or a data definition language (DDL) operation. Specifically, it suggests that the CAST function is being used to convert a value to a data type that is not valid or not supported in the context where it is being used.
  Cause:
  
  Invalid Data Type: The data type specified in the CAST function may not be valid or recognized by the SAP database.
  Syntax Error: There may be a syntax error in the SQL statement that is causing the CAST function to fail.
  Incompatible Types: The source data type may not be compatible with the target data type specified in the CAST function.
  Database Version: The version of the database may not support certain data types or functions.
  
  Solution:
  
  Check Data Types: Verify that the data type you are trying to cast to is valid and supported by the database. Refer to the database documentation for a list of supported data types.
  Review SQL Syntax: Ensure that the SQL statement is correctly written. Check for any syntax errors that may be causing the issue.
  Use Compatible Types: Make sure that the source data type is compatible with the target data type. For example, you cannot cast a string directly to a date without proper formatting.
  Test in Isolation: If possible, isolate the CAST function in a simple query to see if it works independently. This can help identify if the issue is with the CAST function itself or with the surrounding SQL code.
  Consult Documentation: Refer to the SAP documentation or the specific database documentation for guidance on the correct usage of the CAST function and supported data types.
  Database Upgrade: If the issue is related to the database version, consider upgrading to a version that supports the required data types or functions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message DDLS212.
  Database Documentation: Review the documentation for the specific database you are using (e.g., HANA, MaxDB) for details on data types and the CAST function.
  Community Forums: Search SAP Community forums or other technical forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the DDLS212 error and implement a solution to resolve it.