Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Be one of the first to start using Fabric Databases. View on-demand sessions with database experts and the Microsoft product team to learn just how easy it is to get started. Watch now

Reply
Anonymous
Not applicable

Add Column using value form another table

Hi,

 

I have 2 tables:

 

Table [A]

TimeZone

 

How do I add another colum in [A] that will use a column a vlaue in the TimeZone table without using a Merge Query?

 

The Timezone table only contains one value which is the number of hours to offset. Ideally I would like to use this value as a parameter but have not figured out how to do it.

 

table column.png

 

 

10 REPLIES 10
Phil_Seamark
Microsoft Employee
Microsoft Employee

Hi @Anonymous

 

If you have a 1 to many relationship between Timezone (1) and Table [A] (many)

 

You can add a calcualted column on Table [A] using syntax like.  Just replace the Value with your own column.

 

New Column = RELATED(TimeZone[Value])

To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!

Anonymous
Not applicable

Hi Phil,

 

Currently both tables are independant and is NO RELATIONSHIP between them.

 

Therefore I cannot use the RELATED DAX function.

 

Do I have to create a relationship?

Hi @Anonymous

 

It will be easier if you can create a relationship.  Is there any reason why you can't?

 

 


To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!

But here is an alternative that doesn't use relationships.  My TableA has an [ID] column which I use to lookup an [ID] column in the TimeZone table

 

New Column = 
var JoinCol = 'TableA'[ID]
var NewCol = CALCULATE(MAX('TimeZone'[Value]),'TimeZone'[ID]=JoinCol)
return NewCol

To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!

Can i use this same method but joining on two columns. I've read where people say I should create a merged column in power query to be able to setup a relationship between two tables in the data model, however the two tables I want to join together are summarized tables from my transaction tables, and joining on my transaction tables makes no sense. What I need is add the "Accepted Debit Entry Count" field from the OB_SUMMARY table to the RER_SUMMARY table as it is the base for multiple calculation i need to create in the RER_SUMMARY table.

For example "Unauthorized Return Rate" = "Unauthorized Return Counts"/"Accepted Debit Entry Count"

jimbobobwalker_0-1713289529113.png

Any help would be appreciated

Sorry also the join between the two would partner to partner and FedACH ProcessDate to FedACH ProcessDate

Anonymous
Not applicable

Hi Phil,

 

Thanks for the rpsonses.

 

My table TimeZone only has one value - 10.

I don't see creating a relationship for this table is the best solution and it seems quite silly to do so.

Why can't I use this value as a parameter and then refer to it when I add my new column in Table [A]?

If your table has only one value then save it as a measure then you can use that measure in other calculations.

Hi @Anonymous

 

I think you can refer to it.  Although it's a bit hard to suggest formulas without knowing a little more about your table structure.

 

Are you able to post a small sample set of data to show what your two tables look like?


To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!

Anonymous
Not applicable

table1.pngtable column.png

Helpful resources

Announcements
Las Vegas 2025

Join us at the Microsoft Fabric Community Conference

March 31 - April 2, 2025, in Las Vegas, Nevada. Use code MSCUST for a $150 discount!

Dec Fabric Community Survey

We want your feedback!

Your insights matter. That’s why we created a quick survey to learn about your experience finding answers to technical questions.

ArunFabCon

Microsoft Fabric Community Conference 2025

Arun Ulag shares exciting details about the Microsoft Fabric Conference 2025, which will be held in Las Vegas, NV.

December 2024

A Year in Review - December 2024

Find out what content was popular in the Fabric community during 2024.