Oracle 18c/10.7.1 geodatabase:

When an FC is registered as versioned (with option to move edits to base), several triggers get automatically created:

  • V000001_DELETE
  • V000001_INSERT
  • V000001_UPDATE

When I look at the _DELETE trigger, I see that it belongs to the versioned view:

ON MAXIMO.TEST_FC_EVW  --<<--- versioned view

If I delete a feature from the feature class while using the default version, the trigger does not get called.


Under what circumstances would the _DELETE trigger get called?

  • When a DELETE is requested on the view (not the feature class).
    – Vince
    Aug 23, 2020 at 11:53
  • @Vince I wasn't aware that users could edit/delete data through views in ArcObjects applications. Are the deletes on the versioned views done by users, or are they done by a backend process?
    – User1974
    Aug 23, 2020 at 13:33
  • 1
    Versioned views are for use from SQL, not ArcObjects. The documentation describes their use case.
    – Vince
    Aug 23, 2020 at 14:24

1 Answer 1


The delete trigger would get called when deletion of the feature is done from a child version. The deleted row would be stored in the delta D table created upon registering the FC as versioned for the feature class.

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