###############################################################################
# Function:     connect_to_database
# Purpose:      Connect to the Oracle database
# Arguments:    $db_uid, $db_pwd, $db_sid
# Returns:      $dbh
###############################################################################
sub connect_to_database($$$)
{
        # Declare the variables
        my ($db_uid, $db_pwd, $db_sid) = @_;
        my $dbh;
        my %attribs = (
                PrintError => 0,
                AutoCommit => 0,
                RaiseError => 0
                );

        $dbh = DBI->connect("DBI:Oracle:".$db_sid, $db_uid, $db_pwd , \%attribs )
                or  die "ERROR: Can't connect to database ($db_uid\@$db_sid): ".$DBI::errstr."\n";

        return $dbh;
}

.....
        # Remove erroneous "subroutine redefined" warning
        {
                BEGIN { $^W = 0 }
                $dbh = connect_to_database($db_uid, $db_pwd, $db_sid);
        }