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LoonaMoon
Frequent Visitor

Merge tables based on emails but compare dates first

Hi all. I need to merge two tables based on email, but first compare dates from both tables. Let me explain,

 

I have a table "Workplace SafetyTrainings" where we store dates and scores of each employee training

LoonaMoon_0-1716544937473.png

I need to merge it with HR table where we store full name, department, position and date hired

 

LoonaMoon_2-1716545028139.png

 

As you can see, one employee can change departments and positions over time and take safety training again.

I need a third table that will show the exact position and department at the time of the training.

This is the desired output:

LoonaMoon_3-1716545261721.png

My first thought was to merge tables in Power Query and compare training date and date hired but I dont know how to do it.

I appreciate any option (DAX, Power Query)

 

Thank you

 

1 ACCEPTED SOLUTION
lbendlin
Super User
Super User

You shouldn't do that in Power Query.  Read about how to handle "Slowly Changing Dimensions"  (SCD) in DAX.

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1 REPLY 1
lbendlin
Super User
Super User

You shouldn't do that in Power Query.  Read about how to handle "Slowly Changing Dimensions"  (SCD) in DAX.

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