Oracle Error Codes

OLD and PARENT values cannot be identical

Cannot change the value of a PARENT reference variable

Cannot perform DML on this nested table view column

Cannot specify column list for insert into nested table view column

Cannot reference NEW ROWID for movable rows in before triggers

Cannot create this trigger type on views

Conflicting trigger string already exists

Cannot create INSTEAD OF triggers on tables

Cannot change NEW values for this column type in trigger

WHEN clause is not allowed in INSTEAD OF triggers