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How to use DAX date-based functions in Analysis Services tabular model
Part one of a six-part series of blogs
There are some wonderful date functions in DAX, with evocative names like TotalYtd, SamePeriodLastYear and ParallelPeriod. This blog shows how to use DAX date functions to summarise data, assuming that you have already created a calendar table.
This blog introduces some of the main useful date functions in DAX:
The main date functions which you can use in SSAS Tabular.
The functions that we'll meet are:
TotalYTD, TotalQTD, TotalMTD
DatesYTD, DatesQTD, DatesMTD
|Comparison with previous periods||SamePeriodLastYear, DateAdd|
|Moving averages||DatesBetween, NextDay, LastDate|
|Semi-additive measures||FirstDate, LastDate, FirstNonBlank, LastNonBlank|
We'll begin with one of the simplest things you can do with date functions: show cumulative totals to date.
|Parts of this blog|
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