3 ms·
A little bit unorthodox, but check out http://sql-ex.ru/ http://sql-ex.ru/ (even though it is in .ru , website itself is in English) especially their advanced e
by vittore 10y ago
A little bit unorthodox, but check out http://sql-ex.ru/ http://sql-ex.ru/ (even though it is in .ru , website itself is in English) especially their advanced exercises.
- asafira 10y agoThis was quite a gem when I was practicing some advanced SQL. I find the problems become legitimately hard and take me quite a while to solve. I recommend it to anyone interested in seeing how certain datasets can require quite a bit of creativity to extract using SQL.
- paulddraper 10y ago+1 Also present at http://www.sql-ex.com/ http://www.sql-ex.com/ Not shiny, but very functional. It's been around 5+ years and has lots of great practice for advanced queries.