Hi,
> Perhaps we should leave the system triggers out of the discussion
> entirely? More or less like:
>
> If a foreign key constraint specifies referential actions (that
> is, cascading updates or deletes), those actions are performed via
> ordinary SQL update or delete commands on the referencing table.
> In particular, any triggers that exist on the referencing table
> will be fired for those changes. If such a trigger modifies or
> blocks the effect of one of these commands, the end result could
> be to break referential integrity. It is the trigger programmer's
> responsibility to avoid that.
That's perfect!
--
Best regards,
Aleksander Alekseev
