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Things to Consider to Avoid Prominent Wrong Result Problems on 19C Proactively (Doc ID 2606585.1)

Last updated on APRIL 03, 2024

Applies to:

Oracle Database Cloud Service - Version N/A to N/A [Release 1.0]
Oracle Database - Enterprise Edition - Version to [Release 19]
Oracle Database - Standard Edition - Version to [Release 19]
Oracle Database Cloud Exadata Service - Version N/A to N/A [Release 1.0]
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.


Wrong results are always buggy behavior due to defect in the code. The purpose of this Document is to publish some recommended bug fixes in hopes of avoiding popular & high impact wrong results problems in 19C proactively.

For SQL Performance, refer the below document.

<Document 2773715.1> Things to Consider to Avoid SQL Performance Problems on 19c

Best Practices

It is always recommended to apply the latest DBRU (Database Release Update) that contains many of the known bug fixes for Query Wrong Results problem.
<Patch 33806152> - Database Apr 2022 Release Update (19.15) - Latest

Refer the below document for the latest DBRU information:-
<Document 2521164.1> Oracle Database 19c Proactive Patch Information

REMEMBER: Database Release Updates (RU) are cumulative in nature. For example, the Apr 2021 Release Update patch includes the contents of all previously Release Updates. Hence, it is always recommended to be in the latest RU.

For bugs that are not included to RU yet, please download and install one-off patch for your database version and OS. If you do not find a patch for your specific version and OS from MOS, please open a Service Request with details on the patch needed. Please include a list of patches already applied (opatch lsinventory -detail) as well as any other patches you intend to apply.

NOTE: Use MOS Patch Conflict Checker Tool to check for conflicts with the patches of above bugs against your Oracle Home inventory(opatch lsinventory).
<Document 2254812.1> My Oracle Support Patch Conflict Checker Tool


This Document contains the list of some bugs for wrong results problem in 19c. It is recommended to apply the bug fixes proactively to avoid the likelihood of the wrong results problem in 19c. 


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