YES for those which are "system generated". There are nevertheless quite a few which can be changed by a user, these are "non-relevant" ones from the point of the "internal integrity" of the database. You may change e.g. the "visible" date & time of a history entry, but you cannot change the internal "create date" of the database item.
Andreas Schlesselmann Melville-Schellmann GbR Germany www.melville-schellmann.de