Setting Virtual columns to UNUSED Generates "ORA-12996: cannot drop system-generated virtual column" When Extended Statistics are Present
(Doc ID 2018070.1)
Last updated on NOVEMBER 06, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
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
Information in this document applies to any platform.
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- Setting a virtual column to UNUSED Generates "ORA-12996: cannot drop system-generated virtual column"
- A function based index exists on the virtual column (this is why it is marked as DROPPABLE = NO)
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