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Connect to an Access MDB without using BDE?

Posted on 2009-04-02
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Is it possible to connect to a Microsoft Access MDB file without using the Borland Database Engine?  If 'yes,' then how?
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Question by:Monroe406
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by:Russell Libby
ID: 24056192
You have two other choices:

- Direct ODBC
- ADO

If the version of Delphi that you are using has the AdoExpress components then you are all set. Even if it does not, you can still import the type library information from msado15.dll which will give you the automation interface wrappers into ADO (and thus allow you to get the jet mdb). The other alterntive, and probably at a level you don't want to deal with, is by using direct ODBC SQLxxxx calls.

Your best bet is to figure out if you have the component wrappers for ADO in your version of Delphi. If you do, then check the help files for info regarding props/methods. If you don't, then import the ADO type library info and check the MSDN online for examples using ADO. Its fairly simple to use, and there are a number of resources on line for help.

Regards,
Russell
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by:Monroe406
ID: 24056286
>> If the version of Delphi that you are using has the AdoExpress components then you are all set

I am looking at my Delphi 7 component bar, and I only see "ADO", not "AdoExpress".

When I look at my Delphi 2005 component list, I see a dbGo group with some ADO components.

I also have heard that using DAO is more efficient than ADO.  True?
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Russell Libby earned 125 total points
ID: 24056489

If you have an ADO component group, then you have"AdoExpress" installed which is what provides the components. (AdoExpress - Borland's terminology for the component wrappers they wrote which encapsulate the ADO COM interfaces by way of components).

As to DAO, that might have been true 10 years ago, but I would be hard put to believe it nowadays without evidence. DAO is antiquated, and moreover I'm not sure if its still even supported. Jet has a native OLEDB driver, which can be accessed via ADO (ADO is simplified wrapper over OLEDB). If you use the TAdoConnection and related components, you will find that you can access your mdb in the same fashion as you might have with the BDE, sans the BDE.

Russell
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