Check object in many table whether it is in masterdata table

[FrancisGhao]

Hi All,

I have a transaction table called "Activities" and a Master data table called "projects".

Sometimes new projects are added in the activities table and I need to know so I can update the master data table. In the example. I added project 8 in activities table.

Approach:

Created new table

Find new addition = DISTINCT(Activities[ProjectName])

The following fomula gives me number of transactions in activities table.

The other around = SUMX('Activities', FIND('Find new addition'[ProjectName],'Activities'[ProjectName],,0))

What I would like to see is a boolean (true/false) whether project X is in the master data. So far, youtube tutorials are working from the one-side table. So I dont know the approach when working in the many table. Or is it not recommended? If so, how should I tackle it?

Link file

[v-jingzhang · Accepted solution]

Hi @FrancisGhao 

You can add the following column in 'Find new addition' table. 

Column 2 = IF('Find new addition'[ProjectName] IN VALUES(ProjectList[ProjectName]),TRUE(),FALSE())

Best Regards,
Community Support Team _ Jing
If this post helps, please Accept it as Solution to help other members find it. Highly appreciate your Kudos!

[FrancisGhao]

Thank you! It is working as intended

[amitchandak]

@FrancisGhao ,

A new column in the projects

new =

var _cnt = countx('Find new Addition','Find new Addition'[Project] = project[project]) ,'Find new Addition')

return 

if(isblank(_cnt), "New", "Old")

refer 4 ways (related, relatedtable, lookupvalue, sumx/minx/maxx with filter) to copy data from one table to another
https://www.youtube.com/watch?v=Wu1mWxR23jU
https://www.youtube.com/watch?v=czNHt7UXIe8

[FrancisGhao]

I added a new column in the project table. 

The formula gave an error. The last expression of countX is not recognized.

here is the Link to the file