The stacked range values must be applied in a single tuple; see the following code: 
#!/usr/bin/perl -w

use DBI;
use DBD::Chart;

$dbh = DBI->connect('dbi:Chart:');
$dbh->do('create table stackbar (name varchar(10), y1 integer, y2 inte
+ger, y3 integer, y4 integer)');
$sth = $dbh->prepare('insert into stackbar values(?, ?, ?, ?, ?)');
$sth->execute('foo', 20, 30, 50, 80);
$sth->execute('bar', 30, 40, 70, 90);

$sth = $dbh->prepare("select barchart from stackbar
where WIDTH=500
AND HEIGHT=500
AND X_AXIS='Some Domain'
AND Y_AXIS='Some Range'
AND TITLE='Stacked Barchart Test'
AND FORMAT='PNG'
AND STACK=1
AND SHOWVALUES=1
AND COLORS IN ('green', 'yellow', 'red', 'blue')");
$sth->execute;
$row = $sth->fetchrow_arrayref;

open(OUTF, ">badfloatbar.png");
binmode OUTF;
print OUTF $$row[0];
close OUTF;

$sth->finish;
$dbh->disconnect;

[download]
Perl Contrarian & SQL fanboy

In reply to Re: DBD::Chart: unable to create a 3 levels stacked barchart by renodino
in thread DBD::Chart: unable to create a 3 levels stacked barchart by piso

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