I consider my knowledge of SQL to be advanced (for an analyst). I rarely search for code examples and problem solutions on the internet when writing queries. However, this makes me experience some sort of a curse of knowledge - when I rely on what I already...

Bike-sharing is marketed as a means of transportation that is cheaper than taxis or subway passes, saves time when going crosstown, gives a healthy dose of exercise, and is good for the environment. All those benefits are just plain facts. What I wanted to ...