RE: ODBC vs OLE DB/400 -- MIDRANGE-L

Walden,

We're doing a lot of reporting using Crystal Reports & ODBC.  Some of
the SQL statements are rather nasty.  The UI is web driven; I'm not
entirely sure of all of the technologies involved.  It's had performance
issues on occasion so I'm always on the lookout for anything that might
be of use to improve our situation.

Our non-iSeries developers are pretty good at SQL/SQL Server, and do a
lot of .NET and VB stuff.  No real Java, though.  I'm mostly wondering
if .NET would be better that ODBC from a performance standpoint.  But if
everything passes through QZDASOINIT the point may well be moot.

Thanks,

John A. Jones, CISSP
Americas Information Security Officer
Jones Lang LaSalle, Inc.
V: +1-630-455-2787 F: +1-312-601-1782
john.jones@xxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Walden H. Leverich
Sent: Wednesday, April 05, 2006 10:13 AM
To: Midrange Systems Technical Discussion
Subject: RE: ODBC vs OLE DB/400

John,

Using them from where? Some applications want to talk to OLEDB drivers,
some to ODBC drivers. If you're speaking of programming, in what? If
it's something .NET then you don't want to use either, you want to use
the .NET native provider from IBM.

If you're using older COM based connections (VB6, Delphi, PB, etc.) then
it almost doesn't matter. Code to ADO for data access and you can switch
between the two in the connection string.

I've seen some reports in the past that showed ODBC w/a slight advantage
on first-connect and inserts and OLEDB w/an advantage on larger
recordsets, but in general it's a wash. 

-Walden

--
Walden H Leverich III
Tech Software
(516) 627-3800 x3051
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a
moment to review the archives at http://archive.midrange.com/midrange-l.



This email is for the use of the intended recipient(s) only.  If you have 
received this email in error, please notify the sender immediately and then 
delete it.  If you are not the intended recipient, you must not keep, use, 
disclose, copy or distribute this email without the author's prior permission.  
We have taken precautions to minimize the risk of transmitting software 
viruses, but we advise you to carry out your own virus checks on any attachment 
to this message.  We cannot accept liability for any loss or damage caused by 
software viruses.  The information contained in this communication may be 
confidential and may be subject to the attorney-client privilege. If you are 
the intended recipient and you do not wish to receive similar electronic 
messages from us in future then please respond to the sender to this effect.