KQL StartOf Functions

Robert Cain continues a series on KQL:

In the previous post, Fun With KQL – DateTime Arithmetic, we had hard coded a date for the start of the year, in order to find out how much time had elapsed between it and datetime columns. I had mentioned there are ways to dynamically calculate such values.

In this post we’ll look at one way, using the StartOf... functions. These include startofyear, startofday, startofmonth, and startofweek.

Read on to see how they all work.