Comparing two tables

[Pinky0404]

Hi All,

I have 2 tables, Table 1 and Table 2 , Both has different structure and i am trying to find the  list of users  from table 2 who are not  in table 1. I have merged the tables, but unable to figure it out. Any help would be highly appreciated.

Thanks,

Pinky

[drewlewis15]

You can try using a Left Anti merge, starting with Table 2.  This will show you records that exist in Table 2 that do not exist in Table 1 based on whatever field relates the two tables.

[Phil_Seamark · Accepted solution]

HI @Pinky0404

There are a few ways you can do this.

In DAX you can use the EXCEPT function to generate that as a list.

https://msdn.microsoft.com/en-us/library/mt243784.aspx

You can create this a as a calculated table if you prefer something like,

New Table = 
 EXCEPT( SELECTCOLUMNS(TableA , "UserID" , [UserID]) ,
SELECTCOLUMNS(TableB , "UserID" , [UserID]) ,
)
                

That approach will give you a list of Users that appear in TableA, but don't appear in TableB

Otherwise try a Left outer join in Power Query.