How To Fix RSDBMAN007 - - SQL statement split into &1 additional subaccesses

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDBMAN -

• Message number: 007

• Message text: - SQL statement split into &1 additional subaccesses

What causes this issue?

The SQL statement was split successfully. <(>&<)>1 accesses are executed
before the final statement is executed. These accesses are executed in
parallel, as indicated in the subsequent explanation messages.

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 RSDBMAN007 - - SQL statement split into &1 additional subaccesses ?

  The SAP error message RSDBMAN007 indicates that a SQL statement has been split into additional subaccesses, which can occur when the database optimizer determines that it is more efficient to break down a complex query into simpler parts. This can lead to performance issues if not managed properly.
  Cause:
  
  Complex Queries: The SQL statement being executed is too complex, leading the database to split it into multiple subqueries for execution.
  Database Configuration: The database settings or the way the data is structured may not be optimal for the query being executed.
  Lack of Indexes: Missing or poorly designed indexes can cause the database to take longer to execute queries, leading to subaccesses.
  Data Volume: Large volumes of data being processed can also lead to the splitting of SQL statements.
  
  Solution:
  
  Optimize SQL Queries: Review and optimize the SQL queries to make them simpler and more efficient. This may involve rewriting the query or breaking it down into smaller parts.
  Check Database Indexes: Ensure that appropriate indexes are in place for the tables involved in the query. Adding or modifying indexes can significantly improve query performance.
  Analyze Execution Plans: Use database tools to analyze the execution plan of the SQL statement. This can help identify bottlenecks and areas for improvement.
  Database Configuration: Review and adjust database configuration settings to ensure they are optimized for the workload.
  Data Partitioning: If applicable, consider partitioning large tables to improve query performance.
  Update Statistics: Ensure that database statistics are up to date, as outdated statistics can lead to inefficient query plans.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSDBMAN007 for any specific recommendations or patches that may address the issue.
  Database Documentation: Refer to the documentation for the specific database being used (e.g., HANA, Oracle, SQL Server) for best practices on query optimization and performance tuning.
  Performance Monitoring: Use SAP's performance monitoring tools to track query performance and identify any recurring issues.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the impact of the RSDBMAN007 error and improve overall query performance in your SAP environment.