Question

I am looking to calculate the minutes spent performing a task that is within a specific time window.

I have the two input parameters defining the time window @WindowStart and @WindowEnd and i have [Task Start] and [Task End] columns in my task table.

What would be the easiest way to calculate the time spent on a task that is within my time window? Tasks can easily begin or end after @WindowStart and @WindowEnd.

Answer 1

If what you want is to find the length of tasks are entirely contained in the window:

select [task end] - [task start] as taskDuration
from tasktable
where [task start] > @WindowStart and [task end] < @WindowEnd

If instead you want to look at durations that have any overlap with the window, just flip the and to an or.