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ORA-30505: system triggers should not reference a column in
a WHEN clause



ORA-30505: system triggers should not reference a column in a WHEN clause..

Answer / guest

Cause: An attempt was made to use a WHEN clause to reference
a column with a system trigger, but this type of trigger is
not supported because a system trigger does not have a base
table.

Action: Change the WHEN clause to an appropriate clause.

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