BO IDT connection

Hi All,

We are new to BO IDT and trying to connect Oracle and MSSQL DB's.

Now, while connecting Oracle I can see three type of connections( JDBC, ODBC, Client) which method is useful for fast and flexible usage for Universe designers?

Similarly for MS SQL we can see JDBC, ODBC, OLE DB providers ?.

Thanks

Nageswara Polaka