How To Fix DDLS349 - CAST & to identical type &

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 349

• Message text: CAST & to identical type &

What causes this issue?

You use the CAST function and leave the data type the same in the event
of a changed length or decimal places.

System Response

A warning is generated.

How to fix this error?

If the CAST is superfluous, which is the case for the same type and same
length and same number of decimal places, in particular, you need to
remove it. A superfluous CAST always results in an additional database
action.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS349 - CAST & to identical type & ?

  The SAP error message DDLS349 "CAST & to identical type &" typically occurs during the execution of a Data Definition Language (DDL) statement, particularly when there is an attempt to cast a data type to itself. This can happen in various scenarios, such as when creating or altering database objects, or when working with views or table definitions.
  Cause:
  The error is caused by an attempt to perform a type cast operation where the source and target types are identical. In other words, the system is trying to convert a data type to itself, which is unnecessary and not allowed.
  Solution:
  To resolve this error, you should:
  
  
  Review the DDL Statement: Check the DDL statement that triggered the error. Look for any CAST operations and ensure that you are not trying to cast a type to itself.
  
  
  Remove Unnecessary Casts: If you find a CAST operation that is attempting to convert a type to itself, simply remove that part of the statement. For example, if you have something like CAST(column_name AS column_type), and column_type is the same as the actual type of column_name, you should eliminate the CAST.
  
  
  Check for Implicit Conversions: In some cases, the database engine may handle type conversions implicitly. Ensure that you are not forcing a cast where it is not needed.
  
  
  Test the Changes: After making the necessary adjustments, re-execute the DDL statement to confirm that the error has been resolved.
  
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal or the specific documentation for your version of SAP for more details on DDL statements and data types.
  Data Types: Familiarize yourself with the data types used in your SAP system, as understanding the differences between them can help prevent similar errors in the future.
  Debugging Tools: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to analyze the database objects and their definitions.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or ABAP development team for further assistance, as they may have additional insights or access to system logs that can help diagnose the problem.