ORM (Object-Relational Mapping) is a technique used to map database objects to objects in an object-oriented programming language. It provides a way to interact with a relational database using object-oriented constructs.
The main purpose of ORM is to handle the impedance mismatch between relational databases and object-oriented programming languages. It allows developers to work with database data using objects and classes instead of writing SQL queries directly.
ORM frameworks provide a set of tools, libraries, and APIs that automate the process of mapping database tables to objects, performing database operations, and managing relationships between objects. With ORM, developers can focus on writing business logic instead of dealing with low-level database operations.
ORM simplifies data access and manipulation by abstracting the underlying database operations. It provides features like data querying, CRUD (Create, Read, Update, Delete) operations, and transaction management. ORM frameworks often support multiple databases and handle database-specific differences transparently.
Popular ORM frameworks in the software development industry include Hibernate, Entity Framework, Django ORM, and Sequelize. These frameworks provide a wide range of features and capabilities to boost productivity and simplify database interactions.