I recently joined Periscope, where we produce a data visualization tool. One of our core features is the ability to type in raw SQL to create charts. Also, our best customers are hardcore SQL users.
So, long story short, I need to learn SQL.
I jump into the basic terminology (database, query, console, table, column and row) and some simple SQL (select, from, where and join).
This is a series where I’ll be writing posts as I learn.