How about pushing your data into two seperate arrays?

Untested code follows:

#! perl -w
use CGI ':standard';
use GD::Graph::Bars;
use GD::Graph::Data;
use DBI;

my ($ym, $tc, @ym, @tc);

my $SQL = "SELECT A.YM, SUM(A.TC)FROM A GROUP BY A.YM ORDER BY A.YM ";
my $dbh = DBI->connect('dbi:DB2:DB2W',"$mf_id" , "$mf_pw", { PrintErro
+r => 0}) || die $DBI::errstr);
my $sth = $dbh->prepare($SQL) or die $dbh->errstr;
$sth->execute() or die $sth->errstr;
$sth->bind_columns(undef, \$ym, \$tc);
while ($sth->fetch) {
  push(@ym, $ym);
  push(@tc, $tc);
}
my $data = GD::Graph::Data->new([\@ym, \@tc]);
my $values = $data->copy;

my $mygraph = GD::Graph::bars->new(800, 500);
$mygraph->set(
x_label => 'Month',
y_label => 'Transactions',
title => 'Number of Transactions per Month',
show_values => 1,
bar_spacing => 10,
) or warn $mygraph->error;

my $myimage = $mygraph->plot($data) or die $mygraph->error;
print "Content-type: image/png\n\n";
print $myimage->png;

[download]

In reply to Re: GD:GRAPH using DBI Data. by Mr. Muskrat
in thread GD::Graph using DBI Data. by jwherbold

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