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How to Diagnose ORA-12805 Parallel Query Server Died Unexpectedly Error (Doc ID 1348002.1)

Last updated on AUGUST 20, 2021

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


Purpose

This Document is intended to give tips and techniques to assist with finding root causes for ORA-12805 errors during parallel query execution.

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps
 Concepts/Definitions
 How to Diagnose
 Known Issues
References

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