Looking up a value from another table and showing as "Yes" if present

[jonclay]

Hi all
I'm sure there's a relatively simple answer to this, but I can't think of it for the life of me!
My scenario is that I have two tables - one called Contacts and one called Preferences. Both tables contain the SerialID field, and the Preferences table also contains a Code field. Each SeriaIID can have upto 8 different Codes (A-H), so the SerialID could appear upto 8 times in the Preferences table e.g.

Contacts table

SerialID = 1

SerialID = 2

SerialID = 3

Preferences table

SerialID = 1 / Code = A

SerialID = 1 / Code = F

SerialID = 1 / Code = G

SerialID = 2 / Code = B

SerialID = 3 / Code = H

...and so on.

What I'd like to achieve is a new Column appearing on the Contact table visual within Power BI showing "Yes" if the SerialID and relevant Code appears in the Preferences table.

So, the Contact visual would look something like this:

Any help that you could provide me with would be much appreciated.

Many thanks
Jon

[AlB · Accepted solution]

Hi @jonclay 

1. Create a 1-to-Many relationship between Contacts[SerialID] and Preferences[SerialID]

2. Place Contacts[SerialID] in the rows of a matrix visual

3.  Place Preferences[Code] in the columns of the matrix visual

4. Place this measure in values of the visual

Measure = 
VAR aux_ = COUNT( Preferences[Code] )
RETURN
IF(aux_ >0, "Yes")

Please accept the solution when done and consider giving a thumbs up if posts are helpful.  Contact me privately for support with any larger-scale BI needs, tutoring, etc.

[jonclay]

Thank you SO much, that works perfectly 🙂

[tamerj1]

Hi @jonclay 

Please try measure

Check =
IF ( NOT ISEMPTY ( 'Preferences' ), "Yes" )