$dbh->selectall_arrayref(
      "SELECT ename FROM emp ORDER BY ename",
      { Slice => {} }
  );

##</code><code>##

 my $emps = $dbh->selectall_arrayref(
      "SELECT ename FROM emp ORDER BY ename",
      { Slice => {} }
  );
  foreach my $emp ( @$emps ) {
      print "Employee: $emp->{ename}\n";
  }

##</code><code>##

@array [ value, value2, value3]
or
$string = "value, value2, value3";