# use DBI oracle
my $dbh = DBI->connect("dbi:Oracle:host=server.domain.com; sid=sid; po
+rt=1521", "username", "password") or die "Can't connect to database $
+DBI::errstr\n";

# The SELECT query
# This query return ~9,450,000,000 records
$sql_chr = qq{select column_a, g.column_b, column_c, column_d, column_
+e from table_f f, table_g g where  f.column_a = g.column_b and column
+_c !='-/-' and column_d= 'STR' and column_e='STR1' and column_a = 9};

my $sth_chr = $dbh->prepare( $sql_chr );

if($sth_chr->execute) {
    my $s=1;
    while (my (@dat) = $sth_chr->fetchrow) {
        ##if ($dat[2]) {$tmarker=translate($dat[2]);}
        ##   else { $tmarker="00000"; }

        $tmarker=translate($dat[2]);
        #$data{$dat[0]}{$dat[1]} = $dat[2];
        $data{$dat[0]}{$dat[1]} = $tmarker;
        $lines{$dat[0]} = "";
        $markers{$dat[1]} = "";
        $tmarkers{$tmarker}="";

        #if (!defined $dat_chr1[1]) { $dat_chr1[1]=0; }

        if (!defined $dat[3]) { $dat[3]=0;}
        if (!defined $dat[4]) { $dat[4]=0;}

        #if ($dat[3] eq undef) { $dat[3]=0;}
        #print $dat_chr1[1]." here is the missing data\n";
        #$datachr{$dat[0]}{$dat[1]}{$dat[3]} = $dat[4];

        $datachr{$dat[1]}{$dat[3]} = $dat[4];
        $chr{$dat[3]} = "";
        # print "$s--> $cropid-->$dat[0]-->$dat[1]-->$dat[2]-->$dat[3]
+-->$dat[4]-->$tmarker\n";
        $s++;
    }
}

#### printing the files

my $count_markers = keys %markers;
my $count_lines = keys %lines;
# my $count_chr=keys %chr;

# print the header
my $count_chr=1;
my $checkchr = printmcdchr($csvfile, $count_markers, $count_chr);

# print the content
my $i=1;
foreach my $m (sort {$a eq $b} keys %markers) {
    print OUT "$m $i\n";
    $i++;
}
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