PostgreSQL for Developers
SQL you will actually write, schemas that hold up, indexes that get used, and the operational basics behind them.
Intermediate2h 13m4 modules11.9k students
What you'll learn
code
Write serious SQL
Joins, aggregates, CTEs, and window functions, without reaching for the ORM every time.
layers
Design a schema that lasts
Normalise sensibly, use constraints as guarantees, and pick the right data types.
gauge
Make queries fast
Read a query plan and add the index that plan is asking for.
shield
Operate it safely
Transactions, migrations, backups, and pooling — the parts that matter at 3am.