SAP Knowledge Base Article - Preview

2077161 - Query takes a long time to complete due to bad table scan when statement cache or literal autoparam is on -SAP ASE

Symptom

  • ASE query showplan shows query is choosing a bad table scan instead of index scan even though it has an index.
  •  Statement cache and literal autoparam are on.

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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0 ; Sybase Adaptive Server Enterprise 15.5

Keywords

Adaptive Server Enterprise, performance, optimizer , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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