Our notes on PostgreSQL Exercises
We wrote these notes when we read the PostgreSQL Exercises site for our SQL comparisons. For each note, you see the day of our check and a link to the page that we read.
PostgreSQL Exercises price and plans
- Free. We found no paid plan on the site. Checked October 15, 2026 (source)
PostgreSQL Exercises free use
- All exercises are free. We used them with no account and found no paid plan. Checked October 15, 2026 (source)
PostgreSQL Exercises account
- You need no account and no installation to start. pgexercises saves your progress in your browser. Checked October 15, 2026 (source)
PostgreSQL Exercises query check and help
- You run each query on a live PostgreSQL database, and pgexercises compares your rows with the expected rows. pgexercises gives a check mark to a rewrite with the right rows. It gives a cross to wrong rows, and to the wrong order if an order is part of the question. Checked October 15, 2026 (source)
PostgreSQL Exercises SQL topics
- pgexercises has exercises on joins, subqueries, GROUP BY, window functions such as RANK, and recursive queries with WITH RECURSIVE. Checked October 15, 2026 (source)
PostgreSQL Exercises SQL engines
- You write PostgreSQL. We ran SELECT version() on the site, and the result was PostgreSQL 16.13. Checked October 15, 2026 (source)
PostgreSQL Exercises content and size
PostgreSQL Exercises updates
- The newest dated change that we found is a code commit on October 29, 2020, in the public repository of the site. Checked October 20, 2026 (source)
PostgreSQL Exercises strengths and limits
- You practice on one PostgreSQL database from simple SELECT queries to window functions and recursive queries, and pgexercises compares your rows with the expected rows. Checked October 15, 2026 (source)
- In all 71 exercises, you use one small country-club database, and the newest dated change that we found is from 2020. Checked October 20, 2026 (source)