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Django ORM Mastery🗃️

Intermediate→Advanced

Django 6

Master Django's Object-Relational Mapper for complex database operations. Learn advanced queries, F expressions, Q objects, aggregation, transactions, and performance optimization techniques.

9

Sections

27

Lessons

27

Challenges

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27 lessons and 27 challenges, all 100% free.

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Model Meta Options

Abstract Model Purpose(Sign in required)

Intermediate+20 Mana

Model Inheritance Patterns

Model Inheritance Patterns

Proxy Model Feature(Sign in required)

Intermediate+20 Mana

Model Inheritance Types(Sign in required)

Intermediate+20 Mana

Q Objects for Complex Lookups

Q Objects OR(Sign in required)

Intermediate+20 Mana

F Expressions for Field References

F Expression Benefits(Sign in required)

Intermediate+20 Mana

Advanced Field Lookups

Q Object Operators(Sign in required)

Intermediate+20 Mana

Aggregation Functions

Aggregate vs Annotate(Sign in required)

Intermediate+20 Mana

Annotating QuerySets

Subquery and OuterRef Expressions

Count With Filter(Sign in required)

Intermediate+20 Mana

Aggregation Pipeline Order(Sign in required)

Intermediate+20 Mana

select_related for Foreign Keys

select_related vs prefetch_related(Sign in required)

Intermediate+20 Mana

prefetch_related for Many Relations

Database Indexes and Meta.indexes

Prefetch Object Purpose(Sign in required)

Advanced+30 Mana

N+1 Query Solutions(Sign in required)

Intermediate+20 Mana

Atomic Transactions

Atomic Rollback(Sign in required)

Intermediate+20 Mana

on_commit Hooks

Savepoints and Nested Transactions

On Commit Purpose(Sign in required)

Intermediate+20 Mana

Atomic Transaction Features(Sign in required)

Intermediate+20 Mana

Raw SQL Queries

Raw SQL Safety(Sign in required)

Intermediate+20 Mana

Database Functions

Database Functions: Coalesce, Cast, Greatest, and More

Coalesce Function(Sign in required)

Intermediate+20 Mana

Database Functions(Sign in required)

Intermediate+20 Mana

Custom Model Managers

Custom QuerySets

Manager vs QuerySet Methods(Sign in required)

Intermediate+20 Mana

Chainable QuerySet Methods

As Manager Method(Sign in required)

Intermediate+20 Mana

Manager vs QuerySet Methods(Sign in required)

Intermediate+20 Mana

Introduction to Signals

post_save created Parameter(Sign in required)

Intermediate+20 Mana

ManyToMany Signals

Signal Registration(Sign in required)

Intermediate+20 Mana

Signal Types(Sign in required)

Intermediate+20 Mana

Configuring Multiple Databases

Using Method(Sign in required)

Intermediate+20 Mana

Read/Write Splitting

Migration Strategies for Multi-DB Setups

Router Method(Sign in required)

Intermediate+20 Mana

Database Router Resolution(Sign in required)

Intermediate+20 Mana

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27 interactive lessons and 27 hands-on challenges — learn in VS Code, Cursor, or the web.