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Fali324
Helper II
Helper II

Comparing two columns in different tables and creating a new table with the difference.

Hi 

 

I have the column Job No in two tables (June & July).

 

I want to compare both the tables and pull out the new job no which are in July's table but not in June.

 

How can I do this in Power BI?

 

Thank You

1 ACCEPTED SOLUTION
Vijay_A_Verma
Super User
Super User

Use Left Anti Join. 

In July table, insert this statement where Source must be replaced with your previous step name in July table

= Table.RemoveColumns(Table.NestedJoin(Source, {"Job No"}, June, {"Job No"}, "Temp", JoinKind.LeftAnti), {"Temp"})

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2 REPLIES 2
foodd
Super User
Super User

Using DAX.  Create a Calculated Table, and use the DAX EXCEPT Expression.

 

Expression Name:  EXCEPT

Description:  Returns the rows of the first table in the expression which do not appear in the second table.

Syntax:  EXCEPT(<table_expression1>, <table_expression2> 

Reference URL:  EXCEPT function (DAX) - DAX | Microsoft Learn

 

 

To produce a delta table where you would like to show what Job Codes appear only in July,

do the following:

 

Dax Expression would be:  Jobs only in July = EXCEPT(July,June)

 

dax except.jpg

 

Vijay_A_Verma
Super User
Super User

Use Left Anti Join. 

In July table, insert this statement where Source must be replaced with your previous step name in July table

= Table.RemoveColumns(Table.NestedJoin(Source, {"Job No"}, June, {"Job No"}, "Temp", JoinKind.LeftAnti), {"Temp"})

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