SAP Knowledge Base Article - Preview

2352114 - LEFT JOIN on a CASE statement may return empty set if MERGE JOIN is used.

Symptom

  • A query involving a LEFT join that is expected to return rows returns an empty set
  • The join conditions include a CASE statement that may return a NULL value
  • ASE is configured to use MERGE JOINs


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Environment

  • SAP Adaptive Server Enterprise (ASE) all versions
  • 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 ; Sybase Adaptive Server Enterprise 15.0 ; Sybase Adaptive Server Enterprise 15.5 ; Sybase Adaptive Server Enterprise Cluster Edition 15.0 ; Sybase Adaptive Server Enterprise Cluster Edition 15.5 ; Sybase Adaptive Server Enterprise Cluster Edition 15.7

Keywords

sybase , 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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