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Update Fails with ORA-01779: cannot modify a column which maps to a non key-preserved table (Doc ID 391728.1)

Last updated on SEPTEMBER 04, 2023

Applies to:

Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 8.1.7.4 and later
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
Information in this document applies to any platform.


Symptoms

You have two tables PROYECTO and TABLA.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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