I would like get your opinion on what would be the best way provide access
to data across multiple databases on just on Node (database).

One way that I have tried is create a view on one database that reads tables
across remaining four databases using Dblinks.  Let us say there is a table
called CUSTOMER that resides on five databases, in order to make it easier
to generate reports, a combined view can be created with dblinks on these
tables using UNION ALL on one database.  

Only concern I have is that when using Dblinks, Oracle might copy the entire
remote table to the local database and then retrieve the data based on where
clause.  This might be a significant performance issue especially if the
tables are very BIG.  

If there are better ways to accomplish this or any ideas on this one will be
greatly appreciated.

Thank you,
Srini

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  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