Thanks a lot for your suggestion. It will help me in taking the decision.
-----Original Message-----
From: Richard Huxton [mailto:dev@archonet.com]
Sent: Wednesday, July 25, 2007 6:10 PM
To: Jyoti Seth
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] Database synchronization
Jyoti Seth wrote:
> My master database contains prices of some products that vary after few
> hours and many other details that are also reqd in Db2 which doesn't
change
> that frequently. My slave database contains the details of queries sent by
> the customers.
> These queries are to find the price of the product and other details.
(Some
> part of the info reqd from Db1 varies frequently where some information is
a
> kind of master data that doesn't vary frequently).
>
> So should I use all the ways i.e #2 or #3 to get price info and #1 (slony)
> for other details or there is some other better option
If you can live with a time-lag measured in seconds, then slony will
work just fine. If you can't then you'll want dblink.
One other thing you might consider - if you attach "valid_from" time to
each price then you can put them in place in advance, and make sure they
are replicated before needed.
-- Richard Huxton Archonet Ltd