Introducing ORM, O/RM, and O/R mapping
ORM is the process of persisting objects in a relational database such as RDBMS. ORM bridges the gap between object and relational schemas, allowing object-oriented applications to persist objects directly without having the need to convert objects to and from a relational format.
ORM creates a virtual object database that can be accessed via a programming language and simplifies the data access layer of complex enterprise applications using a relational database as its persistence store. ORM simplifies the job of implementing the data access layer for enterprise applications implemented using object-oriented programming languages and the relational database as its persistence store, as illustrated by the ...
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