It looks easier with a hash
#!perl
use strict;
use DBI;
my $dbh = connect(..);
my %pivot=();
my $total;
my $sql = 'SELECT prod,count(*) FROM prod GROUP BY prod';
my $sth = $dbh->prepare($sql);
$sth->execute();
while (my @f = $sth->fetchrow_array){
$pivot{$f[0] || 'null' } = $f[1];
$total += $f[1];
}
my @cols = sort keys %pivot;
unshift @cols,'total';
$pivot{'total'} = $total;
print sprintf "| %5s ",$_ for @cols;
print "|\n";
print sprintf "| %5d ",$pivot{$_} for @cols;
print "|\n";
Note ; This assumes you don't have a prod called 'total'.
poj
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