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# Doctrine Bundle Doctrine DBAL & ORM Bundle for the Symfony Framework. [](https://github.com/doctrine/DoctrineBundle/actions/workflows/continuous-integration.yml) [](https://codecov.io/gh/doctrine/DoctrineBundle) ## What is Doctrine? The Doctrine Project is the home of a selected set of PHP libraries primarily focused on providing persistence services and related functionality. Its prize projects are a Object Relational Mapper and the Database Abstraction Layer it is built on top of. You can read more about the projects below or view a list of all projects. Object relational mapper (ORM) for PHP that sits on top of a powerful database abstraction layer (DBAL). One of its key features is the option to write database queries in a proprietary object oriented SQL dialect called Doctrine Query Language (DQL), inspired by Hibernates HQL. This provides developers with a powerful alternative to SQL that maintains flexibility without requiring unnecessary code duplication. DBAL is a powerful database abstraction layer with many features for database schema introspection, schema management and PDO abstraction. ## Documentation The documentation is rendered on [the symfony.com website](https://symfony.com/doc/current/reference/configuration/doctrine.html). The source of the documentation is available in the Resources/docs folder.