.NET Persistence API The .NET Persistence API, also referred to as NPA, is a persistence and object-relational mapping (ORM) specification for the .NET framework.
Apache Cayenne Apache Cayenne is an open source persistence framework licensed under the Apache License, providing object-relational mapping and remoting services.
Apache OpenJPA OpenJPA is an open source implementation of the Java Persistence API specification.
AutoFetch AutoFetch is a mechanism for automatically tuning object-relational mapping queries.
Bold for Delphi Bold for Delphi is an advanced Object Relational Mapper (ORM) and application framework.
Dapper ORM Dapper is an object-relational mapping (ORM) solution for the Microsoft .NET platform: it provides a framework for mapping an object-oriented domain model to a traditional relational database.
DatabaseObjects The DatabaseObjects library is an open source tool for mapping relation database systems (MySQL, SQL Server, SQL Server Compact Edition, SQLite, Microsoft Access, Pervasive and HyperSQL) to an o...
Datamapper Datamapper is an object-relational mapper library written in Ruby and commonly used with Merb.
DataMapper (Ruby) DataMapper is an object-relational mapper library written in Ruby that follows the data mapper pattern.
Doctrine (PHP) The Doctrine Project (or Doctrine) is a set of PHP libraries primarily focused on providing persistence services and related functionality.
Ebean Ebean is an object-relational mapping product written in Java.
Entity Framework ADO.NET Entity Framework (EF) is an object-relational mapping (ORM) framework for the .NET Framework.
Fjorm (software) Fjorm is a free open source software library for fast but simple mapping of POJOs to the database.
Hibernate (Java) Hibernate ORM (Hibernate in short) is an object-relational mapping library for the Java language, providing a framework for mapping an object-oriented domain model to a traditional relational da...
iBATIS iBATIS is a persistence framework which automates the mapping between SQL databases and objects in Java, .NET, and Ruby on Rails.
IBM PureQuery pureQuery is IBM's, high-performance data access platform focused on simplifying, developing, securing, managing, and optimizing new and existing applications that access data.
Java Data Objects Java Data Objects (JDO) is a specification of Java object persistence.
Java Object Oriented Querying Java Object Oriented Querying, commonly known as jOOQ, is a light database-mapping software library in Java that implements the active record pattern.
Java Persistence API The Java Persistence API, sometimes referred to as JPA, is a Java programming language application programming interface specification which describes the management of relational data in ...
LLBLGen Pro LLBLGen Pro is an O/R mapper and code generator for the Microsoft .NET platform, created by Solutions Design bv.
MyBatis MyBatis is a Java persistence framework that couples objects with stored procedures or SQL statements using an XML descriptor or annotations.
NHibernate NHibernate (ORM) solution for the Microsoft .NET platform: it provides a framework for mapping an object-oriented domain model to a traditional relational database.
Object-relational impedance mismatch The object-relational impedance mismatch is a set of conceptual and technical difficulties that are often encountered when a relational database management system (RDBMS) is being used by a prog...
Object-relational mapping Object-relational mapping (ORM, O/RM, and O/R mapping) in computer software is a programming technique for converting data between incompatible type systems in object-oriented programming languages.
ODB (C++) ODB is an object-relational mapping (ORM) system for the C++ language.
ORM Designer ORM Designer is a visualization tool and code/schema generator for PHP ORM frameworks like Doctrine2, Doctrine, Propel, and CakePHP, which are used to create database abstraction layer.
ORMLite ORMLite is an open source software framework that provides lightweight object relational mapping (ORM) between Java classes and SQL databases.
Project Wonder Project Wonder is the largest open source collection of reusable WebObjects frameworks, applications and extensions.
Propel (PHP) Propel is a free, open-source (MIT) object-relational mapping toolkit written in PHP. It is also an integral part of the PHP framework Symfony and was the default ORM up to, and including versio...
Quick Objects Quick Objects is a powerful object-relational mapping tool for Microsoft .NET Framework with a built in framework for business logic and validation.
QuickDB ORM QuickDB is an object-relational mapping framework for the Java software platform.
QxOrm QxOrm is an object-relational mapping (ORM) library for the C++ language.
Signum Framework Signum Framework is an open source ORM framework to develop applications on Microsoft .NET platform.
SQLAlchemy SQLAlchemy is an open source SQL toolkit and object-relational mapper (ORM) for the Python programming language released under the MIT License.
Storm (software) Storm is a Python programming library for object-relational mapping between one or more SQL databases and Python objects.
TopLink In computing, TopLink is an object-relational mapping (ORM) package for Java developers.