Re: What is the best way to replicate few tables between 2 Oracle 10g severs ?
Date: Fri, 17 Apr 2009 11:13:30 -0500
> On Apr 16, 2:50 am, Veeru71 <m_ad..._at_hotmail.com> wrote:
>> We need to replicate (1-way) a bunch of tables from Server-A to >> Server-B in close to real-time. >> Server-B is located in a foreign country. >> >> Apporx. # of tables to be replicated : 50 (size : 50 GB) >> Approx amount of data that gets replicated (changed data) per day : >> 100 MB >> Oarcle Versions : 10g, Solaris >> >> Constraints (due to some security reasons): >> - Server-B SHOULD NOT have any DB-Links to connect to Server-A >> - No UserId/Password of Server-A should be used anywhere in scripts/ >> code/config files, etc on Server-B. >> >> What is the best way to achieve this ? Initially we thought of using >> Matreialized Views, but because of the above constraint, it may not >> be feasible. >> >> Do you think Oracle Streams would work ? Would it be an over-kill ? >> Any other options ? >> >> Thanks for your help.
> For the amount of data you are talking about (100MB per day), you can
> probably get away with just triggers on the DB A tables that insert
> into DB B.
> The streams option always bothers me, personally. We used it to
> migrate a fairly large database last year on what was then 10.2.0.3
> from AIX single node to Linux RAC, and we had all kinds of weird
> issues, about 20 one-offs to apply, you name it. We were beginners
> with streams, so I'm sure we were inefficient in how we set it up, but
> I wouldn't call it "easy" to configure, especially with database that
> generate a lot of redo.
With the security requirement of near real-time (not yet quantified here) no pwd in config files and no dblinks, you are going to be hard-pressed to find any solution that does not require a pwd for authentication. Configuring some sort of SSL with public key exchange might be of some help (Streams can do SSL - just not sure where exactly the pwd/key is authenticated - and have not had to do this just yet). Received on Fri Apr 17 2009 - 11:13:30 CDT