How To Fix RSCV548 - INFORMIX: Index &1 does not have the expected type: (Fragmented Strategy)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 548

• Message text: INFORMIX: Index &1 does not have the expected type: (Fragmented Strategy)

What causes this issue?

Index &v1& does not have the expected type. The fact table is
fragmented. The fragmentation strategy of the index should correspond
to the fragmentation strategy of the fact table, meaning the index
should be stored fragmented.

How to fix this error?

Please consult the documentation 'BW on Informix' to resolve this
problem.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSCV548 - INFORMIX: Index &1 does not have the expected type: (Fragmented Strategy) ?

  The SAP error message RSCV548 related to INFORMIX indicates that there is an issue with an index in the database. Specifically, the error states that the index does not have the expected type, which is associated with a "Fragmented Strategy." This typically occurs when the database index is not configured correctly or is not in the expected state for the operations being performed.
  Cause:
  
  Index Configuration: The index may have been created with a different strategy than what is expected by the SAP application. This can happen if the index was manually created or altered outside of the standard SAP processes.
  Database Corruption: There may be corruption in the database that affects the index structure.
  Version Mismatch: There could be a mismatch between the SAP application version and the database version, leading to compatibility issues with index types.
  Fragmentation: The index may be fragmented, which can lead to performance issues and unexpected behavior.
  
  Solution:
  
  
  Recreate the Index: The most straightforward solution is to drop and recreate the index with the correct type. This can be done using SQL commands in the INFORMIX database.
  
  Identify the index using the name provided in the error message.
  Use the appropriate SQL commands to drop and recreate the index.
  
  Example SQL commands:
  DROP INDEX index_name;
  CREATE INDEX index_name ON table_name (column_name) USING <expected_strategy>;
  
  
  Check Index Type: Verify the type of the index and ensure it matches the expected type for the application. You may need to consult SAP documentation or your database administrator for the correct index type.
  
  
  Database Maintenance: Perform regular database maintenance tasks such as updating statistics, rebuilding indexes, and checking for corruption. This can help prevent issues related to fragmentation and performance.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error. There may be known issues or fixes available.
  
  
  Database Backup: Always ensure that you have a recent backup of your database before making changes to indexes or performing maintenance tasks.
  
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal for detailed information on database management and index handling.
  INFORMIX Documentation: Review the INFORMIX documentation for specifics on index types and strategies.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your database administrator or SAP support for further investigation.