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Re: Migrating from Access to Oracle

From: Michael Ho <infoage_at_hk.super.net>
Date: Sun, 11 Jul 1999 00:21:39 +0800
Message-ID: <37877313.F298D59@hk.super.net>


Well my suggestion is if you can affort Oracle 8, which about US$300-500 per concurrent user, try change it to Oracle. The beneficiary is huge. More secure data, fast performance, highly reliable, extremely scalable.

I have use Access 2.0 for long time, very problematic when the system goes complex and large. Upgrade to 95, solve some problem, raise some another. Upgrade again to 97, still the same. I never user the Access to Oracle Migration Kit. (My problem, I never trust those user friendly interface) What I did is:

  1. create exactly the database on Oracle exactly same in access.
  2. Transfer data to Oracle.
  3. Attach the Oracle Database into Access using ODBC.
  4. If you use cascade update relation in access, you may need program some trigger in oracle.

Just that, the migration is complete, work for Access 2.0 or 95 or 97 . Then you can further improve the performance by :

  1. Modify the Query into pass-through query or database view.
  2. Rewrite complex operation into database procedure.

Personally I think for that price, Oracle is very competitive towards SQL Server. But the benefit is huge, Oracle is the market leader afterall. Try to compare a Ferrari with a Honda.

Hope it helps.
Michael

CMG wrote:

> Greetings -
>
> Our business is built on Access 2, but time to move to SQL Server, or
> preferrably, Oracle, retaining Access as the front end. We'll upsize to
> Acc97, then migrate to Oracle, if it really works.
>
> Has anyone tried such a migration? What was your experience? Any input
> or
> links you can provide would be greatly appreciated. I do have the Oracle
> Migration Tools, but I much rather hear the truth about migration from
> an unbiased source.
>
> Thanks,
> Adam Kahn
Received on Sat Jul 10 1999 - 11:21:39 CDT

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