PostgreSQL
La puissante base de données open source, en profondeur.
PostgreSQL is the open-source database behind countless apps: posts, likes, points and game records all live in its tables. This track starts where the SQL course ends and teaches what makes Postgres special: psql, rich types such as jsonb and timestamptz, indexes and query plans, transactions and locking, window functions and full-text search, and running Postgres in production.
Everything is up to date for PostgreSQL 18, and every lesson is short, practical and checked with quizzes. The examples follow Nova, a made-up social app with users, posts, likes and game scores.
- Leçons
- 21
- Durée
- 3 h
- Niveau
- Intermédiaire
Les leçons de ce parcours sont en anglais pour le moment.
- Bronze disponible
- Argent disponible
- Or verrouillé
Envie de faire vos preuves ?
Trois examens vous attendent : Bronze, Argent et Or.
Ce que vous saurez faire
- Explore any Postgres server with psql and understand its databases, schemas and roles
- Choose the right types: timestamptz, numeric, uuid, jsonb, arrays and enums
- Read EXPLAIN ANALYZE and design indexes that make slow queries fast
- Keep data correct under load with transactions, row locks and UPSERT
- Build leaderboards, trees and search with window functions, recursive CTEs and full-text search
- Run Postgres in production: least privilege, pooling, VACUUM, backups and monitoring
L'itinéraire
1 Module 1Postgres essentials
Why Postgres, and how to find your way around a server with psql.
0 / 32 Module 2Rich data types
Store text, money, time, documents and lists the Postgres way.
0 / 43 Module 3Indexes and performance
Read query plans and build the indexes that make them fast.
0 / 34 Module 4Transactions and concurrency
Stay correct when thousands of users write at the same moment.
0 / 35 Module 5Advanced SQL in Postgres
Leaderboards, trees, top-N per group and real search, in plain SQL.
0 / 46 Module 6Running Postgres
Security, pooling, VACUUM, backups and monitoring in production.
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