Yes -- you can specify the hostname and port in the DSN string. From DBI, it says that the dsn is dbi:DriverName:database=database_name;host=hostname;port=port

Are you on oracle? What is your value for $dsn?
The DBD::Oracle page has a section on "Connecting without environment variables or tnsname.ora file" that has the example (you can also use port= with it): 
 $dbh = DBI->connect("dbi:Oracle:host=myhost.com;sid=ORCL", $user, $pa
+sswd);

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In reply to Re: Database connection over a network without having a local TNS entry by davidrw
in thread Database connection over a network without having a local TNS entry by Nesh

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