How To Fix RSDBMAN005 - - SQL for InfoProvider &1 contains &2 tables; splitting SQL

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDBMAN -

• Message number: 005

• Message text: - SQL for InfoProvider &1 contains &2 tables; splitting SQL

What causes this issue?

The SQL access to the InfoProvider contains too many tables. The SQL
statement will be split as described in SAP Note 514907.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDBMAN005 - - SQL for InfoProvider &1 contains &2 tables; splitting SQL ?

  The SAP error message RSDBMAN005 indicates that a SQL query for an InfoProvider is attempting to access a number of tables that exceeds a certain threshold, which leads to the SQL being split into multiple parts. This is a common occurrence in SAP BW (Business Warehouse) when dealing with complex queries that involve multiple tables.
  Cause:
  The primary cause of this error is that the SQL statement generated for the query is too complex or involves too many tables. SAP has a limit on the number of tables that can be joined in a single SQL statement, and when this limit is exceeded, the system automatically splits the SQL into smaller parts to manage the complexity and performance.
  Solution:
  
  
  Optimize the Query: Review the query being executed and see if it can be simplified. This may involve:
  
  Reducing the number of tables involved in the query.
  Using aggregates or summary tables instead of detailed tables.
  Filtering data more effectively to limit the number of records processed.
  
  
  
  Check InfoProvider Design: Ensure that the InfoProvider is designed efficiently. Sometimes, restructuring the InfoProvider or using different types of InfoProviders (like CompositeProviders) can help manage the complexity.
  
  
  Use Aggregates: If applicable, consider using aggregates to pre-calculate and store summary data, which can reduce the need for complex joins at runtime.
  
  
  Database Performance: Ensure that the underlying database is optimized for performance. This includes checking indexes, statistics, and overall database health.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this issue. SAP frequently releases updates and patches that can improve performance or resolve specific issues.
  
  
  Consult Documentation: Review SAP documentation for best practices on query design and InfoProvider optimization.
  
  
  Related Information:
  
  SAP BW Query Performance: Understanding how to optimize queries in SAP BW can significantly improve performance and reduce the likelihood of encountering this error.
  Database Limits: Familiarize yourself with the limits imposed by the underlying database (e.g., SAP HANA, Oracle, etc.) regarding the number of tables that can be joined in a single SQL statement.
  Monitoring Tools: Utilize SAP BW monitoring tools to analyze query performance and identify bottlenecks.
  
  By addressing the complexity of the SQL queries and optimizing the InfoProvider design, you can mitigate the occurrence of the RSDBMAN005 error and improve overall query performance in SAP BW.