topic Power BI Report Builder: DAX query to retrieve last week (Sunday - Saturday) in DAX Commands and Tips

Power BI Report Builder: DAX query to retrieve last week (Sunday - Saturday)

andreas789 — Mon, 10 Jan 2022 09:26:49 GMT

Hello, I need a DAX query, to query a power bi dataset for values in the last week and is equivalent to the following one:

VAR __DS0FilterTable = FILTER( KEEPFILTERS(VALUES('salesty'[TRANS_DATE])), AND( 'salesty'[TRANS_DATE] >= DATE(2022, 1, 2), 'salesty'[TRANS_DATE] < DATE(2022, 1, 9) ) )

Basically, I think I need a DAX formula to get last week's values between Saturday and Saturday.

Re: Power BI Report Builder: DAX query to retrieve last week (Sunday - Saturday)

amitchandak — Mon, 10 Jan 2022 09:59:45 GMT

andreas789 , You need these new columns in date tbale

new columns
Week Start date = 'Date'[Date]+-1*WEEKDAY('Date'[Date],1)+1
Week End date = 'Date'[Date]+ 7-1*WEEKDAY('Date'[Date],1)
Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format

then measures
This Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])))
Last Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1))

Power BI — Week on Week and WTD
https://medium.com/@amitchandak.1978/power-bi-wtd-questions-time-intelligence-4-5-98c30fab69d3
https://community.powerbi.com/t5/Community-Blog/Week-Is-Not-So-Weak-WTD-Last-WTD-and-This-Week-vs-Last-Week/ba-p/1051123
https://www.youtube.com/watch?v=pnAesWxYgJ8

Hope the same work in report builder

Re: Power BI Report Builder: DAX query to retrieve last week (Sunday - Saturday)

ValtteriN — Mon, 10 Jan 2022 10:07:08 GMT

Hi,

You can use Weeknum to get this result. So something like this:

LastWeekT =

var weeknumLW = WEEKNUM(TODAY())-1

VAR __DS0FilterTable =

FILTER(

'LastWeek',

WEEKNUM('LastWeek'[Date])=weeknumLW

)

return

__DS0FilterTable

The default setting for WEEKNUM starts from Sunday so with this you should get last week with this dax.

End result (visualized):

Now you can just refer to this var tables columns e.g. in SUMX and you cant get the results you want. I hope this helps and if it does consider accepting this as a solution and giving the post a thumbs up!

Re: Power BI Report Builder: DAX query to retrieve last week (Sunday - Saturday)

andreas789 — Mon, 10 Jan 2022 12:08:37 GMT

Thanks everybody for your suggestions.

Since the dataset was getting updated every monday, I was able to find a solution by using MAX function and subtracting the days.