Should an application be converted to use ADO?

I'm just an Oracle DBA, not a developer, so maybe my question isn't phrased correctly.
Currently we are using Delphi 5 and Direct Oracle Access (DOA) from allroundautomations ( http://www.allroundautomations.nl/ )
Our developers are considering switching to Microsoft ActiveX Data Objects (ADO) with Delphi 7 instead of DOA.
Is this a good idea? Any caveats, things to consider?
My understanding that when using ADO one also has to choose an OLE DB Provider. I think that we should use whatever driver is written by Oracle. Any reasons not to do that?

Whether it's a good idea or not really depends on the specifics of your application.
- I would assume that it would be more work to convert an existing application using DOA to use ADO in Delphi 7 rather than sticking with DOA.
- ADO is significantly more common than DOA, so it should be much easier to find people who are comfortable with ADO if you need additional help, and you should be able to find a lot more samples, tutorials, etc. on the web.
- ADO may be initially less familiar to your developers, which introduces scheduling risks since their estimates will tend to be less accurate.
- ADO (and the underlying OLE DB API) is designed as a "least-common denominator" sort of database API. I'm assuming from the name that DOA is designed to take specific advantage of Oracle functionality. If you're making use of Oracle-specific functionality, make sure you investigate whether and how ADO handles (or fails to handle) that functionality.
My hunch is that if the developers are considering the switch, it's probably a good idea-- they're the ones most familiar with the specifics of the code.
As far as choosing an OLE DB provider, I'd strongly suggest using the Oracle provider. Rarely, you'll hit a bug in the provider that's not present in some other provider, but that would be the only reason in my mind to switch.
Justin
Distributed Database Consulting, Inc.
www.ddbcinc.com/askDDBC

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--Jagriti
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public:
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Outlook Sync Error SOLVED - Multi-day repeating appointment cannot be converted for use on the Handheld...

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Error Message (simplified):
HotSync session completed with messages on [date] [time]
HotSync session started on [date] [time], and completed in [0] seconds
Outlook Calendar synchronization completed with messages
Duration: [0] seconds
Outlook Calendar
The multi-day repeating appointment titled [event] beginning [date] [time] cannot be converted for use on the Handheld. Please divide the appointment up into single-days and re-synchronize.
OLERR:14-0001
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Post relates to: Treo 755p (Sprint)
Message Edited by akeaw3000 on 01-23-2009 04:11 AM
Message Edited by akeaw3000 on 01-23-2009 07:08 AM

hello,
if all of your data is on the phone you can change the sync action to handhled overwrites desktop
how to:
open palm desktop software
on the top left click on 'hotsync' and then 'custom'
on the calendar conduit
highlight it and click on 'change'
then choose 'handhled overwrites desktop'
hope this will help you
Post relates to: Palm TX

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