How To Fix DDLS129 - Alias & already being used for base object &

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 129

• Message text: Alias & already being used for base object &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS129 - Alias & already being used for base object & ?

  The SAP error message DDLS129 indicates that there is a conflict with an alias name that is already being used for a base object in the database. This typically occurs when you are trying to create or modify a database object (like a table or view) and you attempt to use an alias that has already been assigned to another object.
  Cause:
  
  Duplicate Alias: The alias you are trying to create or use is already associated with another database object.
  Naming Conflicts: There may be a naming conflict due to the use of reserved keywords or existing object names.
  Database Schema Issues: The alias might be defined in a different schema or context that is not visible in your current session.
  
  Solution:
  
  Check Existing Aliases: Use the database tools or SQL commands to check for existing aliases. You can query the system catalog or metadata tables to find out which objects are currently using the alias.
  SELECT * FROM <your_catalog> WHERE alias_name = '<your_alias>';
  
  Rename the Alias: If the alias is already in use, consider renaming the new alias to something unique that does not conflict with existing names.
  Drop or Modify Existing Alias: If the existing alias is no longer needed, you can drop it or modify it to free up the name for your new object.
  DROP ALIAS <existing_alias>;
  
  Use Fully Qualified Names: If applicable, use fully qualified names (including schema names) to avoid ambiguity and conflicts.
  Check for Reserved Keywords: Ensure that the alias name you are trying to use is not a reserved keyword in the database system.
  
  Related Information:
  
  Database Documentation: Refer to the specific database documentation for details on naming conventions and reserved keywords.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to manage database objects and aliases.
  
  By following these steps, you should be able to resolve the DDLS129 error and successfully create or modify your database objects.