Object-Relational Mapping (ORM, O/RM, O/R mapping tool)
Object-Relational Mapping (ORM) is a technique used in software development to bridge the gap between object-oriented programming and relational databases. It involves mapping object-oriented concepts to the underlying relational database, allowing developers to work with objects instead of tables and columns.
The key components of ORM include a focus on object-oriented programming principles, such as encapsulation, inheritance, and polymorphism, as well as the use of mapping tools or frameworks to map objects to database tables.
The importance of ORM lies in its ability to simplify and streamline the process of working with databases in object-oriented programming. By providing a way to work with objects instead of tables and columns, ORM can reduce the amount of code required to interact with the database, as well as simplify maintenance and updates to the database schema.
The history of ORM can be traced back to the early 1990s, when the first object-oriented programming languages were being developed. Since then, ORM has become an increasingly popular technique in software development, with many popular programming languages, such as Java and Python, incorporating built-in support for ORM frameworks.
Examples of situations where ORM could be used include developing a web-based application that requires a database to store and retrieve information, or building a desktop application that requires complex data management.
Overall, Object-Relational Mapping is an important technique used in software development, providing a way to bridge the gap between object-oriented programming and relational databases. By using ORM, developers can work with objects instead of tables and columns, simplifying the process of interacting with databases and making it easier to maintain and update the database schema.