Can you explain what is meant by an ORM query and how it works?

An ORM query is a request to a database formed using Object-Relational Mapping (ORM) — a technology that allows working with database data as objects of a programming language.

Instead of writing SQL queries directly, a developer uses methods and properties of objects, and ORM translates these operations into corresponding SQL queries.

For example, in Django ORM, you can retrieve all User model objects with a specific filter:

users = User.objects.filter(is_active=True)

This ORM code will generate an SQL query like:

SELECT * FROM user WHERE is_active = TRUE;

Thus, ORM queries simplify database work, make code more readable, and are independent of a specific DBMS.