Oracle : Ошибка ORA-25017

"cannot reference NEW ROWID for movable rows in before triggers"
*Cause: NEW ROWID was referenced in a before row trigger which is defined
on an index-organized table, or a partitioned table with enabled
movement of rows. The ROWID cannot be computed in a before row
update trigger because it depends on the actual values of the row
*Action: Remove references to NEW ROWID from the trigger definition.

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