How To Fix RS2HANA_CHECK140 - SQL AP with subselect: No

SAP Error Message - Details

• Message type: E = Error

• Message class: RS2HANA_CHECK - RS2HANA Check Report

• Message number: 140

• Message text: SQL AP with subselect: No

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS2HANA_CHECK140 - SQL AP with subselect: No ?

  The SAP error message "RS2HANA_CHECK140 SQL AP with subselect: No" typically occurs in the context of SAP BW (Business Warehouse) when trying to execute a query or data extraction that involves a subselect operation in a HANA database. This error indicates that the system has encountered a situation where a subselect is not allowed or not supported in the current context.
  Cause:
  
  Subselect Not Supported: The HANA database may not support subselects in certain SQL contexts, particularly in the way they are being used in the query.
  Query Design: The design of the query or the data model may inadvertently lead to a situation where a subselect is generated, which is not permissible.
  Data Source Configuration: The data source or InfoProvider being used may not be configured correctly to handle the query being executed.
  
  Solution:
  
  Review Query Design: Check the query design in the SAP BW Query Designer. Look for any subselects that may be generated and try to refactor the query to avoid them. This may involve using joins or unions instead of subselects.
  Optimize Data Model: Ensure that the underlying data model (InfoObjects, InfoProviders, etc.) is optimized for HANA. This may involve using calculation views or other HANA-specific features that can handle the required logic without subselects.
  Check for Updates: Ensure that your SAP BW and HANA systems are up to date with the latest patches and updates, as newer versions may have improved support for certain SQL operations.
  Use HANA Views: If possible, create HANA views that encapsulate the logic you need without using subselects. This can help in bypassing the limitations of direct SQL queries.
  Consult Documentation: Refer to SAP documentation for any specific limitations or guidelines regarding the use of subselects in HANA SQL queries.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific fixes or workarounds provided by SAP.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Considerations: Be aware that even if subselects are allowed, they can lead to performance issues. Always consider the performance implications of your query design.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP Basis or BW team for further analysis and troubleshooting.