Doctrine 2.0 | Create Database | Are Foreign Keys Unique?

Doctrine OrientDB Object Document Mapper is built for PHP 5.3.2+ and provides transparent persistence for PHP objects. Powerful database abstraction layer with many features for database schema introspection, schema management and PDO abstraction. The Doctrine Migrations offer additional functionality on top of the database abstraction layer (DBAL) for versioning your database schema and easily deploying changes to it.

It is a very easy to use and powerful tool. 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. 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. The Doctrine Common project is a library that provides extensions to core PHP functionality. Doctrine MongoDB Object Document Mapper is built for PHP 5.3.2+ and provides transparent persistence for PHP objects.

Doctrine CouchDB Object Document Mapper is built for PHP 5.3.2+ and provides transparent persistence for PHP objects. Doctrine PHPCR Object Document Mapper is built for PHP 5.3.2+ and provides transparent persistence for PHP objects.