A programming technique for converting data between a relational database and the heap of an object-oriented programming language. This creates, in effect, a virtual object database that can be used from within the programming language.

"Drizzle ORM is a lightweight TypeScript ORM for accessing SQL relational data."

A programming technique for converting data between incompatible type systems in object-oriented programming languages.

"ORM frameworks like Hibernate and Entity Framework enable developers to work with database data as if they were working with objects in their programming language."