Add topic "ORM"

Author: shaedrich

topics/orm/index.md

@@ -0,0 +1,9 @@
+---
+display_name: Object–relational mapping
+short_description: Object–relational mapping is a technique with which records from relational databases are mapped to objects.
+aliases: object-relational-mapping, object-relational-mapper
+topic: orm
+related: object-document-mapper, odm, data-mapper, active-record, database-abstraction, database-abstraction-layer, data-access-object, object-oriented, oop
+wikipedia_url: https://en.wikipedia.org/wiki/Object%E2%80%93relational_mapping
+---
+**Object–relational mapping** (ORM) is a technique with which records from relational databases are mapped to objects using an object-relational mapper in the programming language in which they are used.