Object-Relational Mapping
ORM Definition
Object-relational mapping(ORM,O/RM,and O/R mapping) is a programming technique for converting data between incompatible type systems in object-oriented programming languages.
Overview
ORM Architecture and Framework
Comparison with Traditional Methods
Simple Example with ORM
ORM Language
ORM Tools
Comparison between ORM tools
ORM Advantage and Disadvantage
Advantage
ORM is a rapidly growing and popular methodology that provides clear advantages to the developer: Eliminates the fragility of coding CRUD statements to persist data to and from the database Allows logic, business rules and validation to be introduced to the data Provides domain objects that are easy to customise and manage in code Hides the differences between various databases or data sources Saves vast amounts of coding effort