How do I reset dataset (statement handle) pointer?

I need to find a function or method that will reset or seek the
dataset handle back to the beginning so I can fetchrow all over again
without doing execute() functions all the time...

[code]
$dbConnection->{FetchHashKeyName} = "NAME_lc";
$dataGrid = $dbConnection->prepare("SELECT field, type FROM list");
$dataGrid->execute();

for($i=0; $i<3; $i++){

	while ($fieldRow = $dataGrid->fetchrow_hashref()) {
		print $fieldRow->{'field'};
	}

	#Nee to seek back to first row in $dataGrid here;
	$dataGrid->seekBackToFirstRow(); #I need a function to do it here...
	#fails because no such method exists to do above
}
$dataGrid->finish();
[/code]