How would you use window functions in SQL to calculate a moving average over a set of rows grouped by a specific column? 2. Write a query using a CTE to find the nth highest salary in a company. 3.

It starts with a hit. Maybe a tackle in a high school football game. Maybe a blast wave during military service. The damage ...

Imagine that you want to know the plot of a movie, but you only have access to either the visuals or the sound. With visuals ...