How To Fix DI010 - Index &-& (total of field lengths exceeds allowed value)

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 010

• Message text: Index &-& (total of field lengths exceeds allowed value)

What causes this issue?

The number of fields defined for an index is so large that the sum of
the field lengths exceeds the maximum index width permitted.
An index may have a maximum width of 780 bytes on the database, where
this width is computed from the sum of the field lengths under Unicode.
An offset (usually 4) per field must also be taken into consideration in
addition to the field length, depending on the field type.

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?

Reduce the number or the individual field lengths until the maximum
index width is no longer exceeded.
&HINTS&
If your database system permits wider indexes and the index was already
active with this width, you will be allowed to activate it again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI010 - Index &-& (total of field lengths exceeds allowed value) ?

  The SAP error message DI010, which states "Index &-& (total of field lengths exceeds allowed value)," typically occurs when the total length of the fields defined in an index exceeds the maximum allowed limit. This can happen in various scenarios, particularly when working with database tables and their indexes in SAP.
  Cause:
  
  Field Length Exceedance: The total length of the fields included in the index exceeds the maximum limit set by the database. Different databases have different limits on the total length of indexed fields.
  Data Type Issues: Using data types that have large lengths (like VARCHAR or CHAR) can contribute to this issue if they are included in the index.
  Index Definition: The way the index is defined may inadvertently include too many fields or fields with large lengths.
  
  Solution:
  
  Review Index Definition: Check the definition of the index that is causing the error. You can do this using transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility).
  Reduce Field Lengths: If possible, reduce the lengths of the fields included in the index. This may involve changing the data type or length of the fields in the underlying table.
  Limit Number of Fields: If the index includes too many fields, consider creating a new index with fewer fields or a different combination of fields that still meets your performance needs.
  Database-Specific Limits: Consult the documentation for your specific database (e.g., Oracle, SQL Server, HANA) to understand the maximum allowed index length and adjust your index accordingly.
  Rebuild Index: After making changes, you may need to drop and recreate the index to apply the new definition.
  
  Related Information:
  
  Transaction Codes: Use SE11 to view and modify table definitions and indexes.
  Database Documentation: Refer to the documentation for your specific database system to understand the limitations and best practices for indexing.
  Performance Considerations: While optimizing indexes, consider the trade-off between read performance and write performance, as too many indexes can slow down data modification operations.
  
  If you continue to experience issues after trying these solutions, it may be helpful to consult with your SAP Basis team or a database administrator for further assistance.