Question

I have a table of transactions. In this table I store the transaction datetime in UTC. I have a few months of data, about 20,000 transactions a day.

How would I write a stored procedure to:

A: Count of the most active/busiest hour

B: Return which hour was the most active/busiest

Answer 1

select datepart(hour, the_column) as [hour], count(*) as total
from t
group by datepart(hour, the_column)
order by total desc