Django DRF ORM Query Fundamentals
Learn Django DRF and master database interactions and queries in Django with DRF & PostgreSQL.
Django DRF ORM Query Fundamentals free download
Learn Django DRF and master database interactions and queries in Django with DRF & PostgreSQL.
This course is designed to help you master Django ORM (Object-Relational Mapping) and Django REST Framework (DRF) to build scalable, database-driven APIs. You’ll start from the fundamentals of database design and queries and progress to advanced filtering, joins, and optimizations—all while integrating with DRF to expose your data through APIs.
Course Overview
Module 1: Introduction
Get an overview of the course, its structure, and what you'll achieve by the end.
Module 2: Setting Up Your Development Environment
Install and configure VSCode, Docker, and PostgreSQL.
Set up Django + DRF in a Dockerized environment for real-world development.
Module 3: Defining Database Tables with Django ORM
Learn how to define models, relationships (One-to-Many, Many-to-Many, One-to-One), and constraints.
Work with common data types like strings, numbers, and booleans.
Implement primary keys, foreign keys, and unique constraints.
Automate database table creation with PostgreSQL initialization scripts.
Module 4: Inserting, Updating, and Deleting Data
Work with ViewSets and Serializers to insert, update, and delete records via DRF.
Learn bulk operations, nested inserts, and handling related objects.
Automate database seeding for quick project setup.
Module 5: Querying the Database Efficiently
Retrieve records using all(), values(), only().
Implement dynamic filtering with query parameters & URL paths.
Handle sorting, pagination, and duplicate removal.
Module 6: Advanced Filtering & Query Optimization
Use Q Objects for complex queries (AND, OR, NOT).
Apply pattern matching, range filters, and logical operators.
Optimize queries using list slicing and efficient filtering techniques.
Module 7: Joins & Querying Relationships
Perform INNER JOINs using Django ORM.
Use prefetch_related and select_related for query optimization.
Write raw SQL queries when ORM isn’t enough.
Module 8: Aggregation & Grouping
Count, sum, and average values efficiently.
Use GROUP BY, HAVING, and field-to-field comparisons for advanced analytics.
Why Take This Course?
Build real-world, scalable APIs using Django DRF & PostgreSQL.
Master Django ORM to work with databases effectively.
Optimize queries for performance and scalability.
Learn best practices for structuring DRF applications.
Who is this for?
Developers new to Django DRF and ORM.
Backend engineers looking to optimize query performance.
Anyone who wants to build efficient, scalable REST APIs.
By the end of this course, you'll be confident in designing and querying databases while building production-ready Django REST APIs!
