$q = Doctrine_Query::create()

     ->update('WebusersTable q')

     ->set('q.login_name','?','John')

     ->where('q.webuser_id=?',1)

     ->execute();

$q = Doctrine_Query::create()

     ->update('WebusersTable q')

     ->set('q.login_name', 'John')

     ->set('q.name', 'Another value')

     ->where('q.webuser_id=?',1)

     ->execute();

$queryBuilder = $entityManager->getRepository()->createQueryBuilder('u');

$queryBuilder->update()

    ->set('u.userFirstName', 'Michael')

    ->where('u.userId = :userId')

    ->setParameter('userId', 111)

    ->getQuery()

    ->execute();

    function deleteAgree(AnswerRelationship $entity)

    {

        return  $this->query()

            ->delete('tj_answer_relationship')

            ->andWhere('taskId=:taskId')

            ->setParameter(':taskId', $entity->taskId)

            ->andWhere('questionId=:questionId')

            ->setParameter(':questionId', $entity->questionId)

            ->andWhere('studentId=:studentId')

            ->setParameter(':studentId', $entity->studentId)

            ->andWhere('tagId=:tagId')

            ->setParameter(':tagId', $entity->tagId)//

            ->execute();

    }