and then trying to make sample select, I get the following:
Server: Msg 7399, Level 16, State 1, Line 1
OLE DB provider 'MSDAORA' reported an error. Authentication failed.
[OLE/DB provider returned message: ORA-01017: invalid username/password; logon denied]
OLE DB error trace [OLE/DB Provider 'MSDAORA' IDBInitialize::Initialize returned 0x80040e4d: Authentication failed.].
Please advice, where can I set up the username and password for my Oracle, so the things will work.