connecting to postgresql

[MKlugiewicz]

Hi all!

What is wrong in the fallowing code:

my($dsn)="DBI:Pg:base_name:localhost";

my($user_name)="postgres";
my($password)="";
my($dbh,$sth);

$dbh=DBI->connect($dsn,$user_name,$password,{RaiseError=>});

?

Thanks for any help
                    Marlena