Our notes on Coddy
We wrote these notes when we read the Coddy site for our SQL comparisons. For each note, you see the day of our check and a link to the page that we read.
We give the label "Product's own words" to a note that holds only what Coddy says about its own product.
Coddy price and plans
- Free. Coddy sells Plus and Pro plans without the energy limit; you do not need them for a certificate. Checked October 15, 2026 (source)
Coddy free use
- Coddy says that every course and every certificate is free, with a daily energy limit. Checked October 15, 2026 (source)
Coddy account
- You can start the first lesson with no signup. Coddy adds your certificate to your account, so you need an account to get it. Checked October 15, 2026 (source)
Coddy query check and help
Coddy SQL topics
- In the Fundamentals section, Coddy has lessons on GROUP BY, subqueries, joins, self joins and WITH. There are also lessons on window functions such as ROW_NUMBER, LEAD and LAG, and RANK. Checked October 15, 2026 (source)
Coddy SQL engines
- You run every lesson against a SQLite database in your browser. Checked October 15, 2026 (source)
Coddy content and size
- You finish every lesson and challenge in a section. Coddy then makes the certificate. Coddy gives a separate certificate for each section. Product's own words Checked October 15, 2026 (source)
- The Fundamentals section is 72 lessons, 76 challenges, 360 quiz questions and 1 project. Checked October 15, 2026 (source)
- Coddy gives every certificate a unique ID and a public URL. Coddy says that anyone can paste the ID into its verification tool, or open the URL. Product's own words Checked October 15, 2026 (source)
Coddy updates
- Coddy gives search engines April 25, 2026 as the change date of the SQL course page. Checked October 18, 2026 (source)