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SOLVED

Filter data by last week

Dan5
8 - Asteroid

How can i create a filter that grabs records from last week? Like starting sunday and ending sunday, not past 7 days. 

Emil_Kos
15 - Aurora

Hi @Dan5,

 

Hope you are well.

 

I would suggest using the filter in order to filter for the previous week number.

 

I found a solution that created a line for each day and a week number analysing this might be useful in approaching this problem:

 

https://community.alteryx.com/t5/Alteryx-Designer-Discussions/Calculating-the-week-number/m-p/12245/...

 

Good luck!

Dan5
8 - Asteroid

I am currently using this, but it is for current week, need to modify it so i can grab the last (and full) week, regardless of when i run it during current week. 

 

ToNumber(DateTimeFormat([CREATEDDATE],'%U'))=ToNumber(DateTimeFormat(DateTimeToday(),'%U'))
AND DateTimeYear([CREATEDDATE])=DateTimeYear(DateTimeToday())

BrandonB
Alteryx
Alteryx

You can find the date of the last Friday for example by using something like this in a formula tool: 

 

DateTimeAdd(DateTimeNow(),
Switch(DateTimeFormat(DateTimeNow(),'%a'),0,
'Sat',-1,
'Sun',-2,
'Mon',-3,
'Tue',-4,
'Wed',-5,
'Thu',-6,
'Fri',-7),
"days")

 

You can use two of these formulas where you adjust so that it always pulls the most recent Sunday and the Sunday before. Then you could leverage these in a filter tool where you compare your date column to these dates. 

Dan5
8 - Asteroid

hmm, simply subtracted 1, and it works:

 

ToNumber(DateTimeFormat([CREATEDDATE],'%U'))=ToNumber(DateTimeFormat(DateTimeToday(),'%U'))-1
AND DateTimeYear([CREATEDDATE])=DateTimeYear(DateTimeToday())

 

I am concerned that will will not work as we pass through to 2021. 

 

Can anyone confirm, comment?

Dan5
8 - Asteroid

thanks, that seems like a good idea, I am not sure how to format the statement though; say i want to grab rows created between last sunday and the sunday before that one. 

 

[CREATEDDATE]< DateTimeAdd(DateTimeNow(),
Switch(DateTimeFormat(DateTimeNow(),'%a'),0,'Sun',-2,"days") and [CREATEDDATE]> DateTimeAdd(DateTimeNow(),
Switch(DateTimeFormat(DateTimeNow(),'%a'),0,'Sun',-3,"days")

 

Something close to that?

BrandonB
Alteryx
Alteryx

Something like the screenshot below. Workflow is attached for reference. 

 

sunday to sunday.png

BrandonB
Alteryx
Alteryx

Technically you can build this all into the filter I find that sometimes breaking it out into separate pieces helps for troubleshooting. 

Dan5
8 - Asteroid

thanks, interesting that combined into a filter i get 7 records not 8:

 

[Field1] >= DateTimeAdd(DateTimeNow(),
Switch(DateTimeFormat(DateTimeNow(),'%a'),0,
'Sat',-13,
'Sun',-14,
'Mon',-8,
'Tue',-9,
'Wed',-10,
'Thu',-11,
'Fri',-12),
"days") AND [Field1] <= DateTimeAdd(DateTimeNow(),
Switch(DateTimeFormat(DateTimeNow(),'%a'),0,
'Sat',-6,
'Sun',-7,
'Mon',-1,
'Tue',-2,
'Wed',-3,
'Thu',-4,
'Fri',-5),
"days")

 

 

Also, i am curious to know if this solution would work on a rolling basis. It seems i would have to update the number every week. Am I misunderstanding?

BrandonB
Alteryx
Alteryx

This uses DateTimeNow() which pulls the current date time, so this is a dynamic formula. The reason you are likely getting 7 records rather than 8 is because of the time component. In my example that I showed, I set the field to be a date. You could overcome this by wrapping the DateTimeNow() with a ToDate(DateTimeNow())

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