How To Fix DI023 - Index &-& is defined by exactly one column

DI023 - Overview

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 023

• Message text: Index &-& is defined by exactly one column

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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DI023 - Details

• The SAP error message DI023 indicates that there is an issue with the definition of an index in the database. Specifically, it means that the index you are trying to create or modify is defined by exactly one column, which may not be allowed in the context of the operation you are attempting to perform.
  
  Cause:
  
  Single Column Index: The error typically arises when you are trying to create a composite index (an index on multiple columns) but the system recognizes that the index is defined on a single column.
  Database Constraints: Some database systems have specific constraints regarding the types of indexes that can be created, especially if the index is being used in a certain way (e.g., as a primary key or unique index).
  Incorrect Index Definition: There may be a misunderstanding in the index definition, where the system expects a multi-column index but finds only one column defined.
  
  
  Solution:
  
  Review Index Definition: Check