ORA-43856 When Trying To Set RETENTION of BasicFiles Lob

(Doc ID 2332901.1)

Last updated on NOVEMBER 30, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 to 12.2.0.1 [Release 11.2 to 12.2]
Information in this document applies to any platform.

Symptoms

When trying to change RETENTION of a LOB (BasicFiles), ORA-43856 error is returned.

   

Changes

The customer has been using Automated Undo Management (AUM) and BasicFiles Lob. and they found that RETENTION attribute of the lob segment is set to the same value as undo_retention instance parameter (10,800 in case of the customer) and the value on the lob segment looks unnecessarily (high)long for them. 

Cause

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