Shakeel, this can be done using symmetricDS.
--- On Wed, 4/11/09, ABBAS SHAKEEL <shakeel(dot)abbas(dot)qau(at)gmail(dot)com> wrote:
> From: ABBAS SHAKEEL <shakeel(dot)abbas(dot)qau(at)gmail(dot)com>
> Subject: [ADMIN] Syncronizing Databases at different Remote Location
> To: pgsql-admin(at)postgresql(dot)org
> Date: Wednesday, 4 November, 2009, 3:48 PM
> HelloI am new in the field of Database
> Management. Most of times i worked with Software development
> and Database Design.I need some advice regarding
> database management.
> I have three Database (DB) servers at different
> locations. suppose A, B and C as three servers. where as Z
> is a central server which have VPN to all other
> I have to insert/update records to central
> server Z if there is any insert/update in any of the A,B and
> C server.
> Now I can write a JAVA code that when ever there
> is insertion/updation of record of A/B/C do same in central
> Server Z using JAVA sockets I can send records to central
> server where Socket server will listen and then insert or
> update records in DB.
> But I come to know that there is a concept
> called Replication. I studied it and found that
> it is used for load balancing. I dont need load balancing
> I only need to Syncronize only Two tables of all A,B,C
> servers to central server Z.
> Please suggest how to move forward.(Open source
> solutions )
> Best Regards
> Shakeel Abbas
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