How To Fix RSQBW034 - The use of multiple cubes can lead to performance limitations

SAP Error Message - Details

• Message type: E = Error

• Message class: RSQBW -

• Message number: 034

• Message text: The use of multiple cubes can lead to performance limitations

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSQBW034 - The use of multiple cubes can lead to performance limitations ?

  The SAP error message RSQBW034 indicates that the use of multiple InfoCubes in a query can lead to performance limitations. This typically occurs in the context of SAP BW (Business Warehouse) when a query is designed to pull data from multiple InfoCubes, which can result in complex joins and increased processing time.
  Cause:
  
  Multiple InfoCubes: The query is accessing data from more than one InfoCube, which can lead to performance issues due to the complexity of data retrieval.
  Data Volume: Large volumes of data being processed from multiple sources can slow down query performance.
  Complex Joins: The need to join data from different InfoCubes can create inefficiencies in data retrieval.
  Query Design: Poorly designed queries that do not optimize the use of InfoCubes can exacerbate performance issues.
  
  Solution:
  
  
  Optimize Query Design:
  
  Use a Single InfoCube: If possible, redesign the query to pull data from a single InfoCube instead of multiple ones.
  Aggregate Data: Consider using aggregates to reduce the amount of data being processed.
  Use MultiProviders: If you need to combine data from multiple InfoCubes, consider using a MultiProvider instead of directly querying multiple InfoCubes.
  Filter Data: Apply filters to limit the amount of data being retrieved, which can improve performance.
  
  
  
  Performance Tuning:
  
  Analyze Query Performance: Use transaction RSRT to analyze the performance of the query and identify bottlenecks.
  Indexing: Ensure that the InfoCubes are properly indexed to improve data retrieval times.
  Update Statistics: Regularly update statistics for the InfoCubes to help the query optimizer make better decisions.
  
  
  
  Data Modeling:
  
  Review Data Model: Reassess the data model to ensure it is optimized for reporting needs. This may involve restructuring InfoCubes or creating new ones that better fit the reporting requirements.
  Use CompositeProviders: In newer versions of SAP BW, consider using CompositeProviders, which can provide better performance and flexibility when combining data from multiple sources.
  
  
  
  Consult Documentation: Refer to SAP documentation and best practices for query design and performance optimization in BW.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to performance issues with InfoCubes.
  BW/4HANA: If you are using BW/4HANA, consider leveraging its capabilities for better performance and data modeling.
  Training and Resources: Consider training for BW query design and performance optimization to better understand how to create efficient queries.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the performance limitations associated with the use of multiple InfoCubes in SAP BW queries.