Update Fails with ORA-01779: cannot modify a column which maps to a non key-preserved table
(Doc ID 391728.1)
Last updated on DECEMBER 03, 2019
Applies to: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
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
You have two tables PROYECTO and TABLA.
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