Object-Relational Database Management System (ORDBMS)
An ORDBMS stands for an object-relational database management system that further enhances the functionalities of a relational database by incorporating object-oriented principles. It deals with complex data types, encapsulation, inheritance, and other concepts in an object-oriented way, which is the right support for applications that require both relational and object-oriented abilities.
Entities
In the realm of ORM, entities are synonymous with the objects or classes in object-oriented programming that are bound to tables in the relational databases. They serve as abstractions of business objects or the concepts within the application and their definition is in the code. The ORM component carries out the transformation of these entities into database tables and thus provides smooth communication between the application and the database that lies underneath that application.
Relationships
The relationships in ORM map how entities are related to each other, which describes relationships between tables in a database. These relationships define the way how different elements relate to each other and these relationships are the essence of data integrity and also serve as a mirror between various components that are implemented in the application.
Persistence
Persistence refers to the capability to keep data after an application is ended. The use of Object Relational Mapping (ORM) causes data to persist even when the application is closed or restarted because it is stored in a relational database that makes it secure and available even when the application is off. This is the most important function of the ORM because it allows the temporal persistence of the data used by the application.
What is Object-Relational Mapping (ORM) in DBMS?
Object-relational mapping (ORM) is a key concept in the field of Database Management Systems (DBMS), addressing the bridge between the object-oriented programming approach and relational databases. ORM is critical in data interaction simplification, code optimization, and smooth blending of applications and databases. The purpose of this article is to explain ORM, covering its basic principles, benefits, and importance in modern software development.