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Message type: E = Error
Message class: TG - Messages for Upgrade Repository Switch
Message number: 007
Message text: Primary index & is not unique
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TG007
- Primary index & is not unique ?The SAP error message TG007, which states "Primary index & is not unique," typically occurs when there is an attempt to create or modify a primary index in a database table, but the values in the specified field(s) are not unique. This is a critical issue because a primary index must ensure that each entry in the table can be uniquely identified.
Cause:
- Duplicate Entries: The most common cause of this error is that the data in the field(s) designated as the primary key contains duplicate values. This violates the uniqueness requirement of a primary index.
- Incorrect Table Design: The table may have been designed incorrectly, where the fields chosen for the primary index do not guarantee uniqueness.
- Data Migration Issues: If data has been migrated from another system or imported, it may have introduced duplicates that were not present in the original system.
- Concurrent Data Entry: If multiple users are entering data simultaneously, it may lead to duplicates being created before the primary index is enforced.
Solution:
Identify Duplicates: Use SQL queries or SAP tools to identify duplicate entries in the field(s) that are supposed to be unique. For example:
SELECT field_name, COUNT(*) FROM table_name GROUP BY field_name HAVING COUNT(*) > 1;
This query will help you find which values are duplicated.
Remove or Modify Duplicates: Once duplicates are identified, you can either:
- Delete the duplicate records if they are not needed.
- Modify the records to ensure that they are unique (e.g., by changing values or adding a suffix).
Review Table Design: Ensure that the fields chosen for the primary index are appropriate and that they can guarantee uniqueness. If necessary, consider adding additional fields to the primary key to ensure uniqueness.
Data Validation: Implement data validation rules to prevent the entry of duplicate values in the future. This can be done through user exits, BAdIs, or validation checks in the application layer.
Recreate the Index: After resolving the duplicates, you can attempt to recreate the primary index. Ensure that the database is properly updated and that the index is created without errors.
Related Information:
By following these steps, you should be able to resolve the TG007 error and ensure that your primary index is unique.
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