SAP Knowledge Base Article - Preview

3037884 - Cached Statements with Outer Joins may show poor performance

Symptom

When executing a query which exists in the statement cache either through a Java prepared statement or standard SQL language request,  performance can vary between optimal and poor depending on the search arguments supplied.

This only happens when the server setting "enable literal autoparam" is zero or a Java application specifically turns it off using the LITERAL_PARAM=FALSE connection property.


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Environment

  • SAP Adaptive Server Enterprise (ASE)
  • SAP Adaptive Server Enterprise Cluster Edition (ASE CE)

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 15.7 Cluster Edition ; SAP Adaptive Server Enterprise 16.0 ; SAP Adaptive Server Enterprise 16.0 Cluster Edition

Keywords

Sybase, ASEServer, SAPASE, dataserver, CR822373, CR#822373, bad, slow, dynamic , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed

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