DDLS425 - DDL source & of type & cannot be converted to & (-> long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 425

• Message text: DDL source & of type & cannot be converted to & (-> long text)

What causes this issue?

A DDL source defines an SQL view, a table function, an enhancement for
SQL views, or a table entity. A conversion with these DDL source types
is currently not possible, just like the conversion to another ABAP
Dictionary type -- for example, a data element or a table.
Neither is it possible to delete a DDL source of a DDL source type and
afterwards to create it again with a different DDL source type and keep
the name.

System Response

Check or activation was not successful.

How to fix this error?

If you want to create a DDL source with a different DDL source type,
delete the current DDL source and create a new one. All the newly
defined artifacts are to get new names in this process.
If you need to create another dictionary type with the entity name of
the DDL source, the DDL source in this case must also be deleted. Only
then can you create the dictionary type.

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 DDLS425 - DDL source & of type & cannot be converted to & (-> long text) ?

  The SAP error message DDLS425 indicates that there is an issue with the Data Definition Language (DDL) source and its type conversion. This error typically occurs when there is an attempt to convert a data type that is not compatible with the target type in a DDL operation, such as when creating or altering database objects.
  Cause:
  The error can be caused by several factors, including:
  
  Incompatible Data Types: The source data type is not compatible with the target data type. For example, trying to convert a character type to a numeric type without proper formatting.
  Database Constraints: The database may have constraints that prevent the conversion from occurring.
  Incorrect DDL Syntax: There may be a syntax error in the DDL statement that is causing the conversion to fail.
  Version Mismatch: The version of the database or the SAP system may not support certain data types or conversions.
  
  Solution:
  To resolve the DDLS425 error, you can take the following steps:
  
  Check Data Types: Review the data types involved in the DDL operation. Ensure that the source and target types are compatible. You may need to adjust the data types in your DDL statement.
  Modify DDL Statement: If there is a syntax error, correct it. Ensure that the DDL statement follows the correct syntax for the database you are working with.
  Use CAST or CONVERT Functions: If applicable, use SQL functions like CAST or CONVERT to explicitly convert data types in your SQL statements.
  Review Database Documentation: Check the documentation for your specific database version to understand the supported data types and any limitations regarding conversions.
  Test in a Development Environment: If possible, test your changes in a development or test environment before applying them to production.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common errors.
  Database Documentation: Refer to the documentation for the specific database you are using (e.g., HANA, Oracle, SQL Server) for details on data types and conversion rules.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team for further assistance.