Our notes on sql-practice.com
We wrote these notes when we read the sql-practice.com site for our SQL comparisons. For each note, you see the day of our check and a link to the page that we read.
sql-practice.com price and plans
- Free. We found no paid plan. Checked October 15, 2026 (source)
sql-practice.com free use
- All questions are free. We used them with no account and found no paid plan. sql-practice.com shows ads. Checked October 15, 2026 (source)
sql-practice.com account
- You need no account and no installation to start. Checked October 15, 2026 (source)
sql-practice.com query check and help
- You run each query in the browser, and sql-practice.com compares your output with the expected output. When your output is different from the expected output, you see "Your query does not match the expected output." We ran a two-query test with no account. For a rewrite with the same rows, we got "You Got The Query Correct", also with the rows in a different order and with different column names. For a result one row short, we got "Your query does not match the expected output." Checked October 17, 2026 (source)
sql-practice.com SQL topics
- In the question filters, sql-practice.com names joins, GROUP BY, HAVING, CASE and UNION. On its reference pages, sql-practice.com covers window functions such as LAG and LEAD, but we found no question filter for window functions. Checked October 15, 2026 (source)
sql-practice.com SQL engines
- You write SQLite. We ran SELECT sqlite_version() on the site, and the result was 3.39.3. Checked October 15, 2026 (source)
sql-practice.com content and size
- 69 questions: 54 on a hospital database and 15 on the Northwind database. Checked October 15, 2026 (source)
sql-practice.com updates
- In the list of pages that sql-practice.com gives search engines, sql-practice.com gives the date September 8, 2026 to every page. This is not the day that we read that list. We found no date on a question and no list of changes. Checked October 18, 2026 (source)