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2221681 - BW statistics - Manual Maintenance - SAP ASE for Business Suite

Symptom

You are running SAP BW applications on SAP ASE database. You regularly maintaining statistics on BW system and user tables via DBACockpit ATM (Automated Table Maintenance), as described in SAP ASE Best Practices Guide - SAP Note 1680803.
Plus, BW applications themselves intrinsically maintain table and index-level statistics as part of process chains.

On occasion, however, you find the performance on the BW system to be sub-par or degraded, following full/delta Data Loads or during BW extractions from ERP/CRM systems.
Moreover, the following checks indicate a RED light -- this typically means that the statistics are obsolete:

  • RSA1->"Infocube"->Manage->Performance->Check Statistics 
  • RSRV -> Database -> Check Statistics

 


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7 for Business Suite
  • SAP Adaptive Server Enterprise (ASE) 16.0 for Business Suite
  • SAP Business Warehouse - All versions 

Product

SAP Adaptive Server Enterprise 15.7 ; SAP ERP 6.0

Keywords

BW, ASE, update index statistics, refresh, RSSYBREFRESHINFOCUBESTATISTICS, slow, performance, data loads, ATM, statistics , KBA , BW-SYS-DB-SYB , BW on Sybase ASE Database Platform , How To

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