my $sql=<<"__SQL__";
SELECT 
  to_char(pp.SUBMITTIME, 'YYYY-MM-DD HH:MM:SS') SUBMITTIME,
  to_char(pp.QUEUETIME, 'YYYY-MM-DD HH:MM:SS') QUEUETIME,
  to_char(pp.PREPTIME, 'YYYY-MM-DD HH:MM:SS') PREPTIME,
  to_char(pp.STARTTIME, 'YYYY-MM-DD HH:MM:SS') STARTTIME,
  pp.SESSIONID, pp.PLANID 
from '\$hist_plan_prolog_1' pp
where pp.SUBMITTIME between '2014-06-26 05:00' and '2014-06-26 08:00:00' 
order by pp.SUBMITTIME
__SQL__