Changed order to QueryBuilder -> DQL

The QueryBuilder seems to be easier and more recommend to use. This meant
the QueryBuilder section now contains the primary information and the DQL
section is now reduced to somewhat a "side topic".

Author: wouterj

book/doctrine.rst

@@ -720,12 +720,42 @@ instead of querying for rows on a table (e.g. ``product``).
 When querying in Doctrine, you have two options: writing pure Doctrine queries
 or using Doctrine's Query Builder.
 
+Querying for Objects Using Doctrine's Query Builder
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Imagine that you want to query for products, but only return products that
+cost more than ``19.99``, ordered from cheapest to most expensive. You can use
+Doctrine's ``QueryBuilder`` for this::
+
+    $repository = $this->getDoctrine()
+        ->getRepository('AcmeStoreBundle:Product');
+
+    $query = $repository->createQueryBuilder('p')
+        ->where('p.price > :price')
+        ->setParameter('price', '19.99')
+        ->orderBy('p.price', 'ASC')
+        ->getQuery();
+
+    $products = $query->getResult();
+
+The ``QueryBuilder`` object contains every method necessary to build your
+query. By calling the ``getQuery()`` method, the query builder returns a
+normal ``Query`` object, which can be used to get the result of the query.
+
+The ``getResult()`` method returns an array of results. To get only one
+result, you can use ``getSingleResult()`` (which throws exception there is no
+result) or ``getOneOrNullResult()``::
+
+    $product = $query->getOneOrNullResult();
+
+For more information on Doctrine's Query Builder, consult Doctrine's
+`Query Builder`_ documentation.
+
 Querying for Objects with DQL
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Imagine that you want to query for products, but only return products that
-cost more than ``19.99``, ordered from cheapest to most expensive. From inside
-a controller, do the following::
+Instead of using the ``QueryBuilder``, you can alternatively write the queries
+directly using DQL::
 
     $em = $this->getDoctrine()->getManager();
     $query = $em->createQuery(
@@ -737,49 +767,17 @@ a controller, do the following::
 
     $products = $query->getResult();
 
-The ``getResult()`` method returns an array of results. To get only one
-result, you can use ``getSingleResult()`` (which throws exception there is no
-result) or ``getOneOrNullResult()``::
-
-    $product = $query->getOneOrNullResult();
-
 If you're comfortable with SQL, then DQL should feel very natural. The biggest
 difference is that you need to think in terms of "objects" instead of rows
 in a database. For this reason, you select *from* the ``AcmeStoreBundle:Product``
-*object* and then alias it as ``p``.
+*object* and then alias it as ``p`` (as you see, this is equal to what you
+already did in the previous section).
 
 The DQL syntax is incredibly powerful, allowing you to easily join between
 entities (the topic of :ref:`relations <book-doctrine-relations>` will be
 covered later), group, etc. For more information, see the official Doctrine
 `Doctrine Query Language`_ documentation.
 
-Using Doctrine's Query Builder
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Instead of writing the queries directly, you can alternatively use Doctrine's
-``QueryBuilder`` to do the same job using a nice, object-oriented interface.
-If you use an IDE, you can also take advantage of auto-completion as you
-type the method names. From inside a controller::
-
-    $repository = $this->getDoctrine()
-        ->getRepository('AcmeStoreBundle:Product');
-
-    $query = $repository->createQueryBuilder('p')
-        ->where('p.price > :price')
-        ->setParameter('price', '19.99')
-        ->orderBy('p.price', 'ASC')
-        ->getQuery();
-
-    $products = $query->getResult();
-
-The ``QueryBuilder`` object contains every method necessary to build your
-query. By calling the ``getQuery()`` method, the query builder returns a
-normal ``Query`` object, which is the same object you built directly in the
-previous section.
-
-For more information on Doctrine's Query Builder, consult Doctrine's
-`Query Builder`_ documentation.
-
 Custom Repository Classes
 ~~~~~~~~~~~~~~~~~~~~~~~~~