best practice of creation chema / model for report that should find and overflow "missing items"

[Ritaf]

Hi all, 

What is the best practice of creation chema / model for report that should find and overflow "missing items".

For example i have a table of employees, calendar table, table , employees attendance  report table (by date + employee id) and Health Declaration Signature Report table (also by date +employee id) . I need create a report wich shows me every day which employees didn't sign on Health Declaration.

I did it with margenig tables of employees attendance  report table (by date + employee id) and Health Declaration Signature Report table (also by date +employee id) with" left anti join" to table "not signed" , but i feel that thia is a "fool solution" and sure there is a better one ot more than one 🙂

I'd really appreciate your input about this case,

Rita

[V-pazhen-msft · Accepted solution]

@Ritaf 
I don't fully under your model. However, those merge or join actions are not necessary. You could relate the tables with the calendar table using Date columns. And create a measure to check whether employees are signed up and display in the Health Declaration Signature Report table. 

measure = IF('report table'[employees id] in Values ('Health Declaration Signature Report table[employee id]), "signed","not signed")

Paul Zheng _ Community Support Team
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Ritaf]

I played with it and it works Thank you !

And if i want to have this "flag" as a calculated column which DAX Formula do i need to have.

Your Suggestion isn't wotk here bacause a context of DimDate , i tried to use "Calculate with All/Allsellected/Allecept Unfortunately without success

[Greg_Deckler]

Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.