Need a DAX formula for finding count of servers of Table1 which are missing from Tables 2,3,4

[GC0001]

All 4 tables are connected through index column
Table1 is VM having Col: Server_name
Table2 is Tool having Col: Server_name
Table3 is Excluded having Col: Server_name,Tool_Name
Table4 is Active having Col: Server_name,Tool_Name

I want count of server names of VM table which are not present in any three tables which are Tool, Excluded, Activeusing DAX formula and from Excluded and Active table I only want values to be searched which have "D" as value in Tool_Name column.

Tried dax formulas from Chat gpt and all but showing parameter unexpected and Cant find values errors

[v-tangjie-msft · Accepted solution]

Hi @GC0001 ,

According to your description, here are my steps you can follow as a solution.

(1) This is my test data. 

(2) We can create a table.

Table = 
var _t2=VALUES('Tool'[Col: Server_name])
var _t3=CALCULATETABLE(VALUES('Excluded'[Col: Server_name]),'Excluded'[Tool_Name]="D")
var _t4=CALCULATETABLE(VALUES('Active'[Col: Server_name]),'Active'[Tool_Name]="D")
var _t=UNION(_t2,_t3,_t4) 
RETURN EXCEPT(VALUES('VM'[Col: Server_name]),_t)

(3) We can create a measure. 

Count = COUNTROWS(ALL('Table'))

(4) Then the result is as follows.

If the above one can't help you get the desired result, please provide some sample data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It is better if you can share a simplified pbix file. Thank you.

Best Regards,

Neeko Tang

If this post  helps, then please consider Accept it as the solution  to help the other members find it more quickly. 

[lbendlin]

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