my $query = <<"SQL";
insert into swma_temp_table
(m_serial,m_start,m_end,m_stat,m_product)
select '$serialno',to_date('$row->[5]', 'YYYY-MM-DD'),to_date('$row->[6]', 'YYYY-MM-DD'),'$row->[17]','$row->[9]'
from dual 
where exists (select NULL from servers where host_serial='$serialno')
SQL

	my $stmt = $dbh->prepare($query)
	or die "prepare failed: " . $dbh->errstr();
	$stmt->execute() or die "That serial number is not in our database: " . $stmt->errstr();
	#print $query.";\n -- \n";