How To Fix ACM290 - Update expression for related CTE (view type: &1; column type: '&2')

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM - Message-Class for all ACM functions/exceptions

• Message number: 290

• Message text: Update expression for related CTE (view type: &1; column type: '&2')

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACM290 - Update expression for related CTE (view type: &1; column type: '&2') ?

  The SAP error message ACM290 typically indicates an issue with the update expression for a Common Table Expression (CTE) in a database view. This error can arise in various scenarios, particularly when working with ABAP CDS views or SQL queries in SAP HANA.
  Cause:
  
  Incorrect Data Type: The error message suggests that there is a mismatch between the expected data type of a column and the actual data type being used in the update expression. This can happen if the column type is not compatible with the operation being performed.
  Invalid CTE Definition: If the CTE is not defined correctly or if there are issues with the underlying data model, it can lead to this error.
  Syntax Errors: There may be syntax errors in the SQL or ABAP code that define the CTE or the view.
  Database Constraints: Constraints or rules defined in the database schema may prevent the update from being executed as intended.
  
  Solution:
  
  Check Data Types: Verify that the data types of the columns in the CTE match the expected types. Ensure that any expressions used in the update are compatible with the column types.
  Review CTE Definition: Ensure that the CTE is defined correctly. Check for any logical errors in the SQL query or ABAP code that could lead to this issue.
  Debugging: Use debugging tools to step through the code and identify where the error occurs. This can help pinpoint the exact cause of the issue.
  Syntax Review: Carefully review the syntax of the SQL or ABAP code for any mistakes. Ensure that all expressions are correctly formed.
  Consult Documentation: Refer to SAP documentation or community forums for guidance on the specific error message and potential fixes.
  Testing: If possible, isolate the problematic part of the code and test it independently to see if the error persists.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Version Compatibility: Ensure that you are using compatible versions of SAP components, as discrepancies can sometimes lead to unexpected errors.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.