DDLS067 - DDL source & is embedded in a cycle

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 067

• Message text: DDL source & is embedded in a cycle

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS067 - DDL source & is embedded in a cycle ?

  The SAP error message DDLS067 indicates that there is a problem with a Data Definition Language (DDL) source that is embedded in a cycle. This typically occurs when there is a circular dependency in the database objects, such as views or tables, which prevents the system from processing the DDL statement correctly.
  Cause:
  
  Circular Dependency: The most common cause of this error is a circular reference between database objects. For example, if View A depends on View B, and View B also depends on View A, this creates a cycle that cannot be resolved.
  Incorrect DDL Statements: Sometimes, the DDL statements themselves may be incorrectly defined, leading to unintended dependencies.
  Changes in Database Objects: If changes were made to the structure of tables or views without properly updating dependent objects, it could lead to cycles.
  
  Solution:
  
  Identify Circular Dependencies: Use tools or queries to analyze the dependencies between the database objects. You can check the dependencies of views and tables to identify where the cycle occurs.
  Refactor Database Objects: Once you identify the circular dependencies, you may need to refactor the database objects. This could involve:
  
  Modifying the views to eliminate the circular reference.
  Creating additional views or tables to break the cycle.
  Redesigning the data model if necessary.
  
  
  Check DDL Statements: Review the DDL statements for correctness. Ensure that they do not inadvertently create cycles.
  Use Temporary Views: In some cases, creating temporary views that do not have circular dependencies can help in resolving the issue while you work on a more permanent solution.
  Testing: After making changes, test the DDL statements again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error. SAP frequently updates its knowledge base with solutions for common issues.
  Database Documentation: Review the documentation for the specific database you are using with SAP (e.g., HANA, Oracle, etc.) for best practices on managing dependencies.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to resolve the DDLS067 error and eliminate the circular dependency in your DDL source.