How To Fix RSCV594 - DB2/UDB: The MDC columns of table &1 are not correct

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 594

• Message text: DB2/UDB: The MDC columns of table &1 are not correct

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

What causes this issue?

An error occurred during activation of table &V1&.

System Response

In general, clustering improves the performance of read access to a
table. Two types of clustering are supported: you can select index
clusters in InfoCube maintenance under <ZK>Extras </>-> <ZK>DB
Performance</> -> <ZK>Clustering .</>
The current clustering of the database table is <ZK>Multidimensional
Clustering</> and the number/selection of MDC columns is not correct.

How to fix this error?

Activate the InfoCube again and check whether errors occurred during
activation.
If the InfoCube already contains data and you want to change the
clustering, you have to use reclustering. You can find this function in
InfoCube maintenance under <LS>More Functions -> Reclustering</> or in
the Data Warehousing Workbench in the function area <LS>Administration
-> Reclustering</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSCV594 - DB2/UDB: The MDC columns of table &1 are not correct ?

  The SAP error message RSCV594 indicates an issue with the Multi-Dimensional Clustering (MDC) columns of a DB2/UDB table. This error typically arises when the MDC columns defined for a table do not match the expected configuration or when there are inconsistencies in the database schema.
  Cause:
  
  Mismatched MDC Columns: The MDC columns defined in the table do not align with the expected configuration. This can happen if the table was altered or if there were changes in the underlying data model.
  Database Schema Changes: If there have been changes to the database schema that affect the MDC configuration, this error may occur.
  Corruption or Inconsistency: There may be corruption or inconsistencies in the database that lead to this error.
  
  Solution:
  
  Check MDC Configuration: Verify the MDC configuration for the table in question. Ensure that the MDC columns are correctly defined and match the expected configuration.
  Recreate the Table: If the MDC columns are incorrect, you may need to drop and recreate the table with the correct MDC configuration. Be cautious with this approach, as it may lead to data loss if not handled properly.
  Database Repair: If you suspect corruption, consider running database repair utilities provided by DB2 to fix any inconsistencies.
  Consult Documentation: Refer to the SAP and DB2 documentation for specific guidelines on MDC configuration and troubleshooting.
  Contact Support: If the issue persists, consider reaching out to SAP support or your database administrator for further assistance.
  
  Related Information:
  
  DB2 Documentation: Review the official DB2 documentation for details on MDC and how to configure it properly.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Database Logs: Review the database logs for any additional error messages or warnings that may provide more context about the issue.
  
  Preventive Measures:
  
  Regularly back up your database to prevent data loss.
  Monitor changes to the database schema and ensure that all changes are documented and tested.
  Implement a change management process for database modifications to minimize the risk of errors.
  
  By following these steps, you should be able to identify the cause of the RSCV594 error and implement a solution to resolve it.