object relational mapping

<programming, database>

(ORM) The software development activity that defines a correspondence between objects in a program and rows in a database table. Atomic object properties correspond to columns in the table, non-atomic data types and relations between objects are represented as foreign keys referring to other tables.

An object persistence mechanism is responsible for maintaining the correspondence between objects and the database contents at run-time.

Last updated: 2014-12-03

Nearby terms:

Object Persistence Framework ♦ object relational mapping ♦ object relational modelling

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