How To Fix RSCV589 - DB2/UDB: Index &1 is not a clustering index

SAP Error Message - Details

• Message type: E = Error

• Message class: RSCV - Analysis of BW objects (InfoCubes...)

• Message number: 589

• Message text: DB2/UDB: Index &1 is not a clustering index

What causes this issue?

Index &V1& is not a clustering index as required.

System Response

A clustering index physically organizes all the data records for a table
in the database. Access for reading and deletion is expedited by this.

How to fix this error?

Check the database status for index &V1& in transaction SE14 <ZK>ABAP/4
Dictionary: Utility Database</>. Specify table name &V2& and choose
<ZK>Indexes...</>. Select the index and choose <ZK>Storage Parameters</>
. In the index list, the "OPTIONS" parameter needs to have the value "CL
USTER" under index &V1&. If this parameter is missing, create it under
"For New Creation" and reactivate the index. With large fact tables, we
recommend an activation in the background, since the index creation can
last quite a long time. As an alternative, you can also choose Data
Warehousing Workbench -> InfoCube Maintenance -> Performance -> Repair
Indexes (Immediately).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSCV589 - DB2/UDB: Index &1 is not a clustering index ?

  The SAP error message RSCV589 DB2/UDB: Index &1 is not a clustering index typically occurs in the context of SAP systems that use DB2 as their database management system. This error indicates that a specific index (denoted by &1) is expected to be a clustering index, but it is not.
  Cause:
  
  Clustering Index Requirement: In DB2, a clustering index is used to physically order the data in a table based on the index key. Some operations or configurations in SAP may require that a specific index be a clustering index to optimize performance or ensure data integrity.
  Index Configuration: The index in question may have been created without the clustering option, or it may have been altered or dropped in a way that removed its clustering properties.
  Database Schema Changes: Changes to the database schema or updates to the SAP application may have led to a mismatch in expected index types.
  
  Solution:
  
  Check Index Definition: Verify the definition of the index in question. You can do this by querying the database catalog to see the properties of the index.
  SELECT * FROM SYSIBM.SYSCONTROL WHERE NAME = 'your_index_name';
  
  Create or Alter Index: If the index is not a clustering index and it is required to be one, you may need to drop the existing index and recreate it as a clustering index. The SQL command to create a clustering index would look something like this:
  CREATE INDEX your_index_name ON your_table_name (column_name) CLUSTER;
  Make sure to replace your_index_name, your_table_name, and column_name with the actual names used in your database.
  
  Consult SAP Documentation: Check the SAP notes and documentation related to your specific version and module to see if there are any specific recommendations or requirements regarding clustering indexes.
  Database Administration: If you are not comfortable making these changes, or if the issue persists, consult with your database administrator or SAP support for assistance.
  
  Related Information:
  
  DB2 Documentation: Refer to the official IBM DB2 documentation for more details on clustering indexes and their usage.
  SAP Notes: Search the SAP Support Portal for any relevant notes that might address this specific error or provide guidance on index management.
  Performance Considerations: Understand that clustering indexes can significantly impact performance, especially for large tables, so consider the implications of creating or modifying indexes in a production environment.
  
  Always ensure that you have proper backups and that you test changes in a development or test environment before applying them to production systems.