It's sometimes necessary to count the number of distinct occurrences in an
collection. For example, counting how many times each letter occurs in a block of
text. Or sorting a list by its most common member.
If I were to do this sort of counting with SQL, I would ...
Before finally choosing an engine for my own blog, I spent too much time comparing
the many available options. My goal in this post is to share what I learned about
some of the tools that are avilable. Hopefully this makes it easier for others to
publish their own writing ...