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ORM
Definition:
ORM, or Object-Relational Mapping, is a programming technique that allows for the conversion of data between incompatible type systems by mapping object-oriented entities to relational database tables. This helps simplify data manipulation and interaction within software applications.
The Concept of ORM in Software Development
Object-Relational Mapping (ORM) is a programming technique that maps data stored in databases to objects in object-oriented programming languages. It bridges the gap between the relational database model and the object-oriented model, making it easier for developers to work with databases in their applications.
How Does ORM Work?
ORM works by abstracting the database layer from the application layer. Instead of writing SQL queries to interact with the database directly, developers can use ORM frameworks to manipulate data using high-level programming constructs such as classes and objects.
ORM frameworks typically provide tools to define the mapping between database tables and object classes. This mapping describes how object properties correspond to database columns, and how relationships between objects are represented in the database schema.
When an application needs to retrieve or store data, developers can use ORM methods to perform CRUD operations (Create, Read, Update, Delete) without writing complex SQL queries. The ORM framework translates these method calls into SQL statements, relieving developers from the burden of manual database management.
Benefits of ORM
ORM offers several advantages to developers, including:
- Simplicity: ORM simplifies database interactions, allowing developers to focus on application logic rather than SQL syntax.
- Portability: ORM frameworks abstract database-specific code, making it easier to switch between different database platforms.
- Maintainability: By centralizing database interactions through ORM, developers can easily refactor and optimize database access code.
Overall, ORM enhances developer productivity, reduces code complexity, and facilitates the integration of databases into software applications.
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