[R-sig-DB] using DBI

[Stephen Bond]

Dear DBI Maintainer,

Please, help with the following connection: I need to connect to an 
oracle database on HP Unix host.
I looked at the DBI.pdf which I am sure is very informative for the 
competent readers but it is French to me.
I am not sure what is the difference between Oracle and ROracle drivers 
and how to provide an IP address if that is at all possible.
Also, is there a need for special libs on the host as the DBI.pdf says 
that the drivers need to be extended on the backend?
I know how to use SQL and conect from SAS or C++ using occi, but the R 
DBI is a challenge.
Thank you very much
Stephen