• Subject: RE: Web to AS/400 Database connectivity
  • From: Ken.Slaugh@xxxxxxxxxx
  • Date: Wed, 2 Aug 2000 19:34:09 -0700


We too, at CMI, have been successful with the DataQ and ASP approach to
AS/400 integration. Although very successful, we've been replacing it with
TCP/IP sockets. Since OS/400 V4 and the Unix type APIs were delivered the
performance has been remarkable and RPG programming changes have been
reduced.

To check out a easier set of ActiveX CA/400 aware objects, check out
http://www.cm-inc.com/AS400ole/ which include much more AS/400 support than
DataQs. An optimized SQL is included to directly reference the cwbOBJ.dll
without ODBC and quickly processes records in a read-only mode, thus the
DB2 administrator may allow the ASP programmer to use it in the first
place. Spoolfiles and Spoolfile lists create dynamic Web pages with
original reports straight from the output queues. Calling programs with
parameters and execute OS/400 commands is in there as well. But be careful
as the command PWRDWNSYS *IMMED can be run from a Microsoft sponsored Web
page... Doesn't that send chills up a midranger's spine.

Check out http://www.cm-inc.com/login/index.asp for an example of what we
have done. Choose demonstrations and see a Web based hotel reservations
system and a B2B solution featuring Spoolfiles and Excel downloads. Keep in
mind that only Web pages and images are stored on the NT platform and all
the data comes from the AS/400. Our AS/400 is a model 170 with 256meg of
memory. IBM may not get much revenue from this solution. Most of our
customers can't afford the horse power required to sponsor an AS/400 only
based solution.

I've created an article called 'Using the IBM AS/400 with Microsoft
Internet Information Server', This document is available on-line at
http://www.cm-inc.com/WhatsNew/UsingIIS.htm and should help AS/400 IT staff
become more aware of these types of solutions, especially if ActiveX is
something new to them.

Ken Slaugh  (707) 795-1512 x118
Chouinard & Myhre, Inc.
AS/400 Professional Administrator/MSE
Client Access Specialist
http://www.cm-inc.com/


                                                                                
                
                    Pete Hall                                                   
                
                    <pbhall@execpc.com>        To:     MIDRANGE-L@midrange.com  
                
                    Sent by:                   cc:                              
                
                    owner-midrange-l@mi        Subject:     RE: Web to AS/400 
Database          
                    drange.com                 connectivity                     
                
                                                                                
                
                                                                                
                
                    08/02/00 06:02 PM                                           
                
                    Please respond to                                           
                
                    MIDRANGE-L                                                  
                
                                                                                
                
                                                                                
                



At 08:32 08/02/2000 , Art Tostane wrote:
>I'm aware of the Asna product.  The app that we are writing is written
>using Lansa.  One of the web
>companies bidding is using the Lansa product, so there are no
>problems.  I'm interested in options
>that are more "standard".  These web guys are talking about using things
>such as Cold Fusion, etc.

Although I am also very impressed with AVR and the ease with which you can
get data on and off of the AS/400 with it, you might also look at data
queues in conjunction with ASP. The data queue control in the 5250 toolbox
is a slam dunk to use and very fast. It's almost as fast and easy as using
AVR and passing data back and forth as parameters. Either one of these
methods have the added advantage of allowing you to control what goes on
and comes off of your box, because you own the server piece. I would be
reluctant to open up my system to software that I can't control, and about
the only other option I know of is ODBC, which is very difficult to keep
tabs on, slower and more resource intensive too. If you own the server, you

can write code that takes advantage of what you know about your database.
It not only keeps control in house where it belongs, but it makes the
presentation more efficient, quicker, and less error prone. Everything I've

read lately recommends a clear delineation between the presentation and
business logic layers. That's one of the reasons I'm working with AVR, ASP,

and AS/400 server applications to generate XML. The presentation layer is
completely decoupled from the database. The web guys can make things
pretty, but I get to control the data. It's quick too. XML isn't ready for
use on the outside yet, although if you have a 6-8 month delay for
development, it'll be a lot more common. My "customers" are all internal.
If you do use XML, to some extent you'll probably end up proselytizing for
Microsoft, because they appear to be the main consumer vendor that's
supporting XML in a big way. Fortunately it's a vehicle that's worth
supporting. Check out the SOAP protocol if you doubt it's going to fly.
Pete Hall
pbhall@execpc.com
http://www.execpc.com/~pbhall
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