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Doctrine, open source ORM for PHP, Free software (MIT) CakePHP, ORM and framework, open source (scalars, arrays, objects); based on database introspection, no class extending; CodeIgniter, framework that includes an ActiveRecord implementation; Yii, ORM and framework, released under the BSD license. Based on the ActiveRecord pattern
SQLAlchemy is an open-source Python library that provides an SQL toolkit (called "SQLAlchemy Core") and an Object Relational Mapper (ORM) for database interactions. It allows developers to work with databases using Python objects, enabling efficient and flexible database access.
An alternative to implementing ORM is use of the native procedural languages provided with every major database. These can be called from the client using SQL statements. The Data Access Object (DAO) design pattern is used to abstract these statements and offer a lightweight object-oriented interface to the rest of the application.
Atlas ORM (data mapper, table data gateway, query builder, and PDO wrapper) [3] Doctrine2 Object Relational Mapper (ORM) and the Database Abstraction Layer [4] Cycle ORM (PHP DataMapper ORM and Data Modelling Engine) [5] CakePHP ORM (PHP DataMapper ORM, query builder, and PDO wrapper)
Software Platform Availability License Version Persistence Specification Apache Cayenne: Java: Open source: Apache License 2.0 : 4.2.1 [1] / 2024-06-14; 6 months ago : Dapper.NET 4.0
Object–role modeling (ORM) is used to model the semantics of a universe of discourse. ORM is often used for data modeling and software engineering . An object–role model uses graphical symbols that are based on first order predicate logic and set theory to enable the modeler to create an unambiguous definition of an arbitrary universe of ...
ORM2 contains improvements to the original ORM1 specification. ORM2 is implemented in NORMA. Dr. Terry Halpin led the original NORMA effort whilst serving as a Professor at Neumont University and from 2007, continued via The ORM Foundation, [4] a UK-based non-profit organization dedicated to the promotion of the fact-based approach to information modeling
Single table inheritance is a way to emulate object-oriented inheritance in a relational database.When mapping from a database table to an object in an object-oriented language, a field in the database identifies what class in the hierarchy the object belongs to. [1]