SAP Knowledge Base Article - Preview

3210498 - Query using merge-join has performance issues - SAP ASE

Symptom

  • Query running slower and using a less efficient plan:
  • Observations are:
    • MRU rather than LRU.
    • Nested Loop Join is now Merge-Join.
    • But the default data cache is configured as LRU.
  • Why is the plan changing for this data set?


Read more...

Environment

SAP Adaptive Server Enterprise 15.7 SP 141

Product

SAP Adaptive Server Enterprise 15.7

Keywords

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , How To

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.