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Attribute free, the predicates of an ORM Model lend themselves to the analysis and design of graph database models in as much as ORM was originally conceived to benefit relational database design. The term "object–role model" was coined in the 1970s and ORM based tools have been used for more than 30 years – principally for data modeling.
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 ...
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
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
An object–relational database (ORD), or object–relational database management system (ORDBMS), is a database management system (DBMS) similar to a relational database, but with an object-oriented database model: objects, classes and inheritance are directly supported in database schemas and in the query language.
Dapper is an object–relational mapping (ORM) product for the Microsoft .NET platform. It provides a framework for mapping an object-oriented domain model to a traditional relational database. [4] Its purpose is to relieve the developer from a significant portion of relational data persistence-related programming tasks.
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
Orm, the name of a dragon (and part of the name of other dragons) in the Earthsea series; Orm (given name), with a list of people with this name; ORM as an acronym may refer to: Object–relational mapping, a software programming technique that allows accessing relational databases in the form of abstract objects