use DBIx::DAL;

   my $f = 3;
   dal->connect("mysql:dbname:localhost", "user", "pass");
   my $id = query "foo[blah = 1 | 2, baz = ?](id)", $f;
   dal->disconnect;

##</code><code>##

 +----Table: colors-----+
 | id | name   | rating |
 +----+--------+--------+
 |  1 | blue   |      9 |
 |  2 | green  |     10 |
 |  3 | red    |      7 |
 |  4 | orange |     10 |
 |  5 | brown  |      3 |
 +----+--------+--------+

##</code><code>##

  my $color = "green";
  my ($ans) = query "colors[name = ?](rating)", $color;
  print "Rating: ", $ans->[0], "\n"; # prints "Rating: 10\n"

##</code><code>##

  my ($color, $new_rating) = ("green", 8);
  query "colors[name = ?](rating) = ?", $color, $new_rating;

##</code><code>##

 +-----Table: items------+
 | id | name  | color_id |
 +----+-------+----------+
 |  1 | sky   |        1 |
 |  2 | brick |        3 | 
 |  3 | tree  |        5 |
 |  4 | water |        1 |
 +----+-------+----------+

##</code><code>##

  my ($item) = ("sky");
  my ($ans) = query "colors[id = items[name = ?](color_id)](rating)", $item;
  print "Rating: ", $ans->[0], "\n"; # prints "Rating: 9\n"

##</code><code>##

  my ($item, $color) = ("leaf", "green");
  query "items(name, color_id) = ?, colors[name = ?](id)";