Object Relational Mapping (ORM) is a programming technique to

map data from a relational database to Object oriented domain

model. This is the core of Hibernate framework.

In case of Java, most of the software is based on OOPS design. But

the data stored in Database is based on Relation Database

Management System (RDBMS).

ORM helps in data retrieval in an Object Oriented way from an

RDBMS. It reduces the effort of developers in writing queries to

access and insert data

https://www.freecodecamp.org/news/what-is-an-orm-the-meaning-of-object-relational-mapping-database-tools/