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Re: Data transfer problem....plz reply soon

From: Frank van Bortel <fbortel_at_home.nl>
Date: Wed, 06 Feb 2002 20:33:10 +0100
Message-ID: <3C6184F6.2314D6FD@home.nl>


Himansu wrote:
>
> Hello !
>
> We have a system in which the same database is running in
> several Client machines(desktops) on Personal Oracle.
> We have another machine(say server)with the same database which is
> connected
> (through dial-up network connection) to each of the client machines
> in different times during the day.
> The need is to transfer all the new transactions to the database on
> the server
> from each of the client machines when the connection is on.
>
> One approach for this as I see is to send the dmp file(incremental
> export)
> to the server each time the connection is on and then to import this
> file on the server.
> But this involves manual work at both the ends.
>
> Is there any other way in which the transactions can be updated in the
> server
> without much of manual work involved ???
>
> I need the solution early, so need your comments/suggestions soon.
>
> Thank you in advance.
> Himansu

Sounds like Replication to me.
Each client keeps track of the changes made on that client, and sends only
the identifying fields for a table (usually Primary Key), and the new values
for the changed fields.
Same mechanism on the server.

Allows for conflict resolution (what if the same record is changed on two
sides?) as well. Pretty efficient, lots of changes get exchanged to and fro
pretty fast.

-- 
Gtrz,

Frank van Bortel
Received on Wed Feb 06 2002 - 13:33:10 CST

Original text of this message

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