SQL Exercises

for IT professionals

(developers and the entire world around)

This part of my site contains simply SQL exercises. These are in
general reflections of my daily work and try to illustrate ways to
solve various problems, mostly SQL related. Most of these topics
were already described in various places across the Internet so I
cannot claim the new.

What I try here is to offer my experience to people using SQL:
programmers, analysts, even skilled users, to anyone interested
in the topic. Despite the fact that SQL is so common and so
frequently used, there is a lot of improvement. So, whenever I
notice something that deserves to be described, I want to be
useful and share something out of my experience of a specialist
in SQL programming.