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Troubleshooting ORA-600 [12235] Errors (Doc ID 403519.1)

Last updated on SEPTEMBER 01, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 8.1.7 to 11.2]
Oracle Database - Standard Edition - Version to [Release 7.0 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform. This document refers to database/RDBMS versions 7.0 to Much of this will also be relevant to future releases


The purpose of this guide is to explain the meaning of the ORA-600 [12235] error and some of the possible causes. It is intended as a starting point in the troubleshooting process. It does not contain in depth step by step instructions for each eventuality, but there is enough information to allow you to determine whether or not this is a serious issue, and if so, what the possible cause might be. There are links provided to allow you to find additional information as required.

Troubleshooting Steps

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In this Document
Troubleshooting Steps

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