use Storable qw(freeze thaw);
use DBI;
use Data::Dumper;
use strict;
use warnings;

my $dsn = "DBI:mysql:database=test;host=foo";
my $dbh = DBI->connect($dsn, 'root', 'abcd', {RaiseError => 1});
#my $data = {'a'=>1, 'b'=>{'c'=>2, 'd'=>3}, 'e'=>[1,2,3]};
#my $frozen = freeze($data);
#my $command = "insert into test(a,b) values(10,?)";
#my $sth = $dbh->prepare($command);
#$sth->execute($frozen);
my $command = "select b from test where a = 10";
my $sth = $dbh->prepare($command);
$sth->execute();
my $result = $sth->fetchrow_arrayref();
my $data = thaw($result->[0]);
print Dumper($data);