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Django, ActiveRecord ORM included in Django framework, open source; SQLAlchemy, open source, a Data Mapper ORM; SQLObject, open source; Storm, open source (LGPL 2.1) developed at Canonical Ltd. Tryton, open source; web2py, the facilities of an ORM are handled by the DAL in web2py, open source
Django: Python: Open source: BSD licenses: 5.1.6 [3] 5 February 2025; 16 days ago Doctrine: PHP Open source: MIT 2.14.1 / January 16, 2023 EclipseLink: Java: Open source: Eclipse Public License Version 1.0 (EPL) and Eclipse Distribution License Version 1.0 (EDL) 2.4.2 / July 4, 2013 JPA 2.0: Entity Framework Core.NET Open Source: Apache License ...
Django was created in the autumn of 2003, when the web programmers at the Lawrence Journal-World newspaper, Adrian Holovaty and Simon Willison, began using Python to build applications. Jacob Kaplan-Moss was hired early in Django's development shortly before Willison's internship ended. [15] It was released publicly under a BSD license in July ...
Compared to traditional techniques of exchange between an object-oriented language and a relational database, ORM often reduces the amount of code that needs to be written. [2] Disadvantages of ORM tools generally stem from the high level of abstraction obscuring what is actually happening in the implementation code. Also, heavy reliance on ORM ...
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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 ...