DAX query - Looking up (v-lookup) in the same table

Sindrin

New Member
Joined
Jan 6, 2021
Messages
24
Office Version
  1. 2013
Platform
  1. Windows
Hi All,

Hoping can get some input from the DAX experts here.

I have a table imported via power query.

It has 2 columns
  1. Employee ID - this contains a list of employee IDs
  2. Month - this contains 'current month' and 'last month' value

Note - The same employee ID can appear twice in the table e.g. having a current month row and a last month row

How can I lookup those employee IDs (in previous month) that are no longer in the current month?

I want to add a column in the same table to say those employee IDs in previous month that are no longer in current month to be flagged with "Leaver", the rest to remain null/blank.

Is this possible?

Many thanks in advance,
Prinz
 

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