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IDS Forum

RE: CDC API - Change database

Posted By: LARRY SORENSEN
Date: Monday, 12 September 2011, at 9:36 a.m.

In Response To: Re: CDC API - Change database (Art Kagel)

Is there any better documentation on the CDDC API? I have looked in the Information Center documentation and it does not explain much. It says to run the syscdcv1.sql script to do the initial setup, but then it gets fuzzy.

1) It mentions accessing the data using C programs that I develop. It does really explain how the data gets into the new database. It hints at creating a program to capture the data and put it into the new database, but I thought that was the CDC API's job. It appears that I use a tool like DBAccess to run sql to set up the change monitoring. Is that true, and does the data appear automatically in the new database after that?

2) Can't I just access the data like I would a regular database? It is unclear what the table names will be for the data. Is it the same name as the table in the original database where the changes were made?

It is frustrating that IBM/Informix provides a tool like the CDC API, but has very little documentation on how to use it if you are wanting to use it for the first time. Does anyone else have any experience with the CDC API? I can't even find enough information to make an informed decision on whether I can use if for my needs or not.

Larry

> To: ids@iiug.org
> From: art.kagel@gmail.com
> Subject: Re: CDC API - Change database [24877]
> Date: Wed, 7 Sep 2011 11:34:58 -0400
>
> Built-in but you need to initialize it by creating the syscdcv1 database and
> installing the stored procedures that implement the functionality. There is
> a script, $INFORMIXDIR/etc/syscdcv1.sql, that you execute to do that. See
> the Change Data Capture Programmer's Guide for details.
>
> 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 Wed, Sep 7, 2011 at 11:20 AM, LARRY SORENSEN <lsorensen25@msn.com> wrote:
>
> > Thank you for the clarification. Do I need to install it, or is it already
> > built in and I just use it?
> >
> > Larry
> >
> > > To: ids@iiug.org
> > > From: art.kagel@gmail.com
> > > Subject: Re: CDC API - Change database [24872]
> > > Date: Wed, 7 Sep 2011 09:59:17 -0400
> > >
> > > OK: CDC API is free and included with Informix. There is a manual for how
> > > to use it included in the manual set.
> > >
> > > InfoCenter CDC is a separate product, a kind of intra-RDBMS ETL
> > > tool that uses the CDC API. This is the chargeable product.
> > >
> > > 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 Wed, Sep 7, 2011 at 9:47 AM, LARRY SORENSEN <lsorensen25@msn.com>
> > wrote:
> > >
> > > > I have had a lot of good responseses from my previous query. The only
> > > > problem
> > > > that I am having now is the following:
> > > >
> > > > >From one source, I am told that the CDC API is not included with
> > Informix
> > > > and
> > > > is an item requiring purchase (Software vendor).
> > > >
> > > > >From another source I am told that this is a free item (tech support).
> > > >
> > > > I am not sure which is correct, nor do I still know where I can get the
> > > > software for the API. Can anyone provide clarification on this?
> > > >
> > > > Also, is this CDC API that same as the IBM product, Infocenter CDC; or
> > are
> > > > they two different products?
> > > >
> > > > Larry
> > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> *******************************************************************************
> > > > Forum Note: Use "Reply" to post a response in the discussion forum.
> > > >
> > > >
> > >
> > > --bcaec52994bb61579604ac5a5977
> > >
> > >
> > >
> >
> >
> *******************************************************************************
> > > Forum Note: Use "Reply" to post a response in the discussion forum.
> > >
> >
> >
> >
> >
> *******************************************************************************
> > Forum Note: Use "Reply" to post a response in the discussion forum.
> >
> >
>
> --90e6ba6e844092372204ac5baf59
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>

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