Whoops - rereading this and I notice I state "All will receive I, U and
D activity".  One responder questioned how I could do this w/RO
snapshots.  Obviously can't.  The point I meant to make is I have to
manage an initial population of data and then the changes.  Fast refresh
would be my preference - hence the logs.  So, the method I'm leaning
toward is simple RO snapshots w/fast refresh.  No updateable snapshots
required.  

There is overhead (an extra  insert at least) on the PROD instance
associated w/snapshot logs, likewise triggers if I use them.  My
question is simply what do others do to avoid this overhead (if
anything) when handling incremental DML?  I can only assume that in very
high transaction environments, the logs/trigger approach would reduce
commit time and, in turn, application performance.  Does this present
concern to some?

Any and all comments much appreciated ... and thanks Mark for pointing
out my err ...

:-)
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Casey Dyke
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to