How To Fix DT510 - Index &-& completely contains the fields of index &

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 510

• Message text: Index &-& completely contains the fields of index &

What causes this issue?

You created an index whose fields are completely contained in another
index. This index is therefore unnecessary and should be deleted.

System Response

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

How to fix this error?

If you get this message during an upgrade, you probably created
an index in the customer name range which is already contained
in a similar definition in the standard version of the new release.
Check if the customer index contains fewer fields than the SAP
standard index. In this case you can delete the customer index
since the SAP index completely covers this one.
If the customer index contains more fields, keep the index if the
additional fields have a high selectivity in your case. Otherwise
the index will have no advantage over the SAP standard index and
can also be deleted.
The databases generally allow you to create indexes which overlap.
It is not necessary to delete them during the upgrade.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT510 - Index &-& completely contains the fields of index & ?

  The SAP error message DT510 indicates that an index is completely filled with the fields of another index. This typically occurs in the context of database table definitions and indexing in SAP systems. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Index Definition Conflict: The error arises when you attempt to create or modify an index that has fields that are already fully covered by another existing index. This means that the new index does not add any additional value or performance benefit because all the fields it contains are already indexed by another index.
  
  
  Redundant Indexes: It can also occur if there are redundant indexes defined on a database table, leading to unnecessary complexity and potential performance issues.
  
  
  Solution:
  
  
  Review Existing Indexes: Check the existing indexes on the table in question. You can do this using transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility). Look for indexes that contain the same fields as the one you are trying to create.
  
  
  Modify or Drop Redundant Indexes: If you find that the index you are trying to create is indeed redundant, consider dropping it or modifying it to include additional fields that are not already covered by existing indexes.
  
  
  Adjust Index Fields: If the new index is necessary for performance reasons, you may need to adjust the fields included in the index to ensure it provides unique value compared to existing indexes.
  
  
  Consult Documentation: Review SAP documentation or consult with your database administrator to understand the best practices for indexing in your specific SAP environment.
  
  
  Related Information:
  
  Transaction Codes: Use SE11 to view and manage database table definitions and indexes.
  Performance Tuning: Proper indexing is crucial for database performance. Redundant indexes can slow down data modification operations (INSERT, UPDATE, DELETE) and increase storage requirements.
  SAP Notes: Check SAP Notes for any specific guidance or updates related to your version of SAP and the specific error message.
  Database Administration: In some cases, it may be beneficial to involve a database administrator to analyze the indexing strategy and optimize it for performance.
  
  By following these steps, you should be able to resolve the DT510 error and ensure that your database indexing is efficient and effective.