my $sth = $dbh->prepare("DELIMITER //");
$sth->execute();
exit;

##</code><code>##

DBD::mysql::st execute failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER //' at line 1 at /root/test.pl line 22, <FH> line 8.

##</code><code>##

root@vagrant:~# perl -MDBI -e 'DBI->installed_versions'
  Perl            : 5.010001	(i486-linux-gnu-thread-multi)
  OS              : linux	(2.6.32-5-686)
  DBI             : 1.612
  DBD::mysql      : 4.016
  DBD::Sponge     : 12.010002
  DBD::Proxy      : 0.2004
  DBD::Gofer      : 0.014123
  DBD::File       : 0.39
  DBD::ExampleP   : 12.010007
  DBD::DBM        : 0.05