VC++ & CDaoDatabase classes

I am trying to connect to Oracle database through
VC++,though there are special ODBC classes provided
by MFC,because of certain needs,I have to use
CDaoDatabase classes.But it is not getting connected
through ODBC.I think I am wrong somewhere because i
have never used ODBC.As there is Open method provided by
CDaoDatabase.If anybody can tell me how to connect to
Oracle database,to access all the tabledefs,and relationships
I will be thankful to you.It will be just small code.
And I think we can use ODBC API's also.But I don't know
how.VB programmers are used to connect to Oracle database.
But instead of connecting directly through ODBC,if you
know how to connect through JET engine.
Eagerly waiting for your reply.