FOR Previous
By default, the FOR Previous function refers to values from one time period ago. You can customize FOR Previous by adding a second parameter to the function.
For differences between FOR Previous and FOR PreviousPeriod, see Functions For Referring to Past Time Periods.
Syntax
SELECT … FOR Previous(…,…)
SELECT metric FOR Previous(time_attribute)
SELECT metric FOR Previous(time_attribute, #periods_ago)
Examples
SELECT Revenues FOR Previous(Quarter)
By default, FOR Previous()refers to values from one time period ago. This can be customized by adding a second parameter to the function. For example, you may want to return a revenue value from three quarters ago (see below).
SELECT Revenues FOR Previous(Quarter , 3)