#!/usr/bin/perl

use strict;
use warnings;
use DBI;

my  $dbh = DBI->connect("dbi:MaxDB:....",...);

my $sth1 = $dbh->prepare("Select k1 From t1") or die "preparing: $DBI::errstr"; my $sth2 = $dbh->prepare("Select k2 From t2 Where k1 = ?") or die "preparing: $DBI::errstr";
$sth1->execute or die "executing: $DBI::errstr";
my @fields1;
while (@fields1 = $sth1->fetchrow_array) {
  $sth2->bind_param(1, $fields1[0]);
  $sth2->execute or die "executing: $DBI::errstr";
  my @fields2;
  while (@fields2 = $sth2->fetchrow_array ) {
     print ">>>T2 - $fields1[0] $fields2[0]\n";
  }
  $sth2->finish;
}
$sth1->finish;
$dbh->disconnect;

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