Today I am going to talk about some examples on converting SQL queries into DQL . Doctrine query language (DQL) is the query language used by Doctrine ORM. Doctrine ORM 2.x is shipped with Symfony 2.x by default. Let’s take some examples and discuss. For the following examples we will be creating an instance of Doctrine query builder to structure DQL’s.
Creating an instance of doctrine query builder
$em = $this->getDoctrine()->getManager();
$result = $em->createQueryBuilder();
SELECT * FROM contact
$dql = $result->select(‘c’)