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IDS Forum

RE: Creating a delta database with Informix to....

Posted By: Richard Snoke
Date: Thursday, 25 August 2011, at 1:18 p.m.

In Response To: RE: Creating a delta database with Informix to.... (LARRY SORENSEN)

No, CDC is not free. It is a separate product with its own price, based
on the size of the source and target systems.

Dick Snoke
IBM ChannelWorks

dsnoke@us.ibm.com
(404) 487-1595

From: "LARRY SORENSEN" <lsorensen25@msn.com>
To: ids@iiug.org
Date: 08/24/11 05:40 PM
Subject: RE: Creating a delta database with Informix to.... [24705]
Sent by: ids-bounces@iiug.org

Do you know if the CDC software is a free tool like some of the other
tools,
or is it a charged for item?

> To: ids@iiug.org
> From: dsnoke@us.ibm.com
> Subject: RE: Creating a delta database with Informix to.... [24703]
> Date: Wed, 24 Aug 2011 16:22:44 -0400
>
> Hi,
>
> The devil is in the details.
>
> The CDC product (separate software) would, in fact, do the whole job.
The
> CDC agent for the Informix database captures changes as they occur using

> the API in the Informix product. That agent then puts that data wherever

> you want. You configure the target, which may be another Informix
> database. If you configure CDC to do this as an audit trail, the
> timestamp of the change and perhaps other stuff is also recorded by CDC.

>
> So the CDC product uses (relies on) the API provided by Informix to
> capture changes from the logical logs.
>
> If you write your own functions (the "catch functions") to use that
> interface and then tuck the data away somewhere, you can accomplish the
> same result. The only issue is how much time, people, and money is
> involved in each case and whether or not you have the programming skills

> to do it.
>
> Cheers,
> Dick Snoke
> IBM ChannelWorks
>
> dsnoke@us.ibm.com
> (404) 487-1595
>
> From: "LARRY SORENSEN" <lsorensen25@msn.com>
> To: ids@iiug.org
> Date: 08/24/11 03:34 PM
> Subject: RE: Creating a delta database with Informix to.... [24702]
> Sent by: ids-bounces@iiug.org
>
> So, what you are saying is that CDC is not an all encompassing solution?

> It
> requires other software? As car as "catch functions", is that not what
the
> CDC
> software does with the proper setup? I am still a little confused about
> the
> whole thing.
>
> > To: ids@iiug.org
> > From: art.kagel@gmail.com
> > Subject: Re: Creating a delta database with Informix to.... [24683]
> > Date: Tue, 23 Aug 2011 22:19:08 -0400
> >
> > You would have to write the catch functions to make the inserts into
the
>
> > delta database or purchase a 3rd party system that can do it for you.
> There
> > are a couple out there that can use Informix's CDC API, including one
> from
> > IBM.
> >
> > Art
> >
> > Art S. Kagel
> > Advanced DataTools (www.advancedatatools.com)
> > Blog: http://informix-myview.blogspot.com/
> >
> > Disclaimer: Please keep in mind that my own opinions are my own
opinions
> and
> > do not reflect on my employer, Advanced DataTools, the IIUG, nor any
> other
> > organization with which I am associated either explicitly, implicitly,

> or by
> > inference. Neither do those opinions reflect those of other
individuals
> > affiliated with any entity with which I am affiliated nor those of the

> > entities themselves.
> >
> > On Tue, Aug 23, 2011 at 5:59 PM, LARRY SORENSEN <lsorensen25@msn.com>
> wrote:
> >
> > > Yes. CDC is what I have heard of. Will that not do what I want? I
want
> a
> > > database to capture all the changes into.
> > >
> > > Larry
> > >
> > > > To: ids@iiug.org
> > > > From: jonathan.leffler@gmail.com
> > > > Subject: Re: Creating a delta database with Informix to....
[24678]
> > > > Date: Tue, 23 Aug 2011 17:30:00 -0400
> > > >
> > > > On Tue, Aug 23, 2011 at 11:33, LARRY SORENSEN
<lsorensen25@msn.com>
> > > wrote:
> > > >
> > > > > Sun Solaris 10
> > > > > IDS 11.50.FC5 Growth
> > > > >
> > > > > Has anyone had any experience with the following:
> > > > >
> > > > > I have heard that Informix provides a method whereby you can
> create a
> > > > > special
> > > > > database that you can populate with data as it is changed in
your
> main
> > > > > database. (Kind of a Delta database, if you will.)
> > > > >
> > > >
> > > > Are you thinking of the CDC - Change Data Capture - facility?
> > > >
> > > > Has anyone had experience with setting this up? What was the
effort
> > > > > involved?
> > > > > Is there any good documentation out there that someone can point

> me to
> > > to
> > > > > explain this and to provide good instructions on setting this
up?
> > > > >
> > > >
> > > > A Google search for 'informix cdc' pulls upa Developerworks
article
> and
> > > some
> > > > manuals.
> > > >
> > > > --
> > > > Jonathan Leffler <jonathan.leffler@gmail.com> #include
> <disclaimer.h>
> > > > Guardian of DBD::Informix - v2011.0612 - http://dbi.perl.org
> > > > "Blessed are we who can laugh at ourselves, for we shall never
cease
> to
> > > be
> > > > amused."
> > > >
> > > > --001517741af882118004ab32e55d
> > > >
> > > >
> > > >
> > >
> > >
> >
>
>
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>
> > > > Forum Note: Use "Reply" to post a response in the discussion
forum.
> > > >
> > >
> > >
> > >
> > >
> >
>
>
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>
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> > >
> > >
> >
> > --20cf307cfd84a5fc6a04ab36ef10
> >
> >
> >
>
>
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>
> > Forum Note: Use "Reply" to post a response in the discussion forum.
> >
>
>
>
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