Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
SQL Exercises for practise (Enlish and Russian versions
Interactive SQL Tutorial (English and Russian versions)
Art in stamps (Russian)
This user hasn’t posted yet.