• Subject: MS ADO with CA Express ADO vs. CA Express ODBC?
  • From: "Luther Ananda Miller" <luther.miller@xxxxxxxxxx>
  • Date: Wed, 13 Oct 1999 18:04:33 +0200

I am looking to use MS ADO in VB and given the choice of connecting to CA
Express ODBC drivers or ADO drivers, I would prefer using the ADO drivers.
However it looks like there are a couple of limitations:

1) It appears we cannot pass the userid/password in on connect, but the
client access prompt must be used instead (unlike when using the ODBC
drivers). Is there a way to pass these instead?

2) Can't find a way to set the default library. If we use ODBC we can set up
DSNs and specify the default library.... isn't there a similar mechanism
with Client Access's ADO drivers? DefaultDatabase property on the Connection
object seems to not be supported by the drivers.

3) I assume I am going to miss out on some potential performance benefits if
we use MS ADO objects to connect via CA ODBC DSNs instead of CA ADO -- what
kinds of performance differences are there between these two methods?


luther.miller @ hypere.com

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