Difference between ALTER SYSTEM SET EVENTS and init.ora parameter?

Howdy all,

I have a support tech telling me that:

        alter system set events '6500 trace name processstate level 10';

will NOT produce the same trace file as setting:

        event= "6500 trace name processstate level 10"

in the init.ora and bouncing the 9.2.0.5.0 instance.  The tech's unable
to explain what the difference is, however.  I tried testing this by
setting event 1652 as above and running a cartesian product with an
ORDER BY.  The trace was created just fine from what I can see.  I can't
justify bouncing a production instance because a tech says so (and no
way in hell I will without explanation).

Anyone have any ideas what the difference might be, if any?

TIA!
Rich
--
http://www.freelists.org/webpage/oracle-l


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