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willboyes
Frequent Visitor

Replicating vlookup in same table

Hi - apologies if I'm missing something really obvious here, but I'm struggling to replicate a Vlookup in Power BI.

 

I have a table with 3 columns, the first is a consecutive ID value for each row, the second is a text string, and the third is another set of IDs which reference the first column.  I need to add another column which shows the text string from the second column, where the IDs in the first and third columns match. This is a simple Vlookup in Excel...

 

This table uses data from a Sharepoint Task app. The third column uses IDs to reference task hierarchy within a list, e.g. a task begins with one entry and then multiple sub-tasks, each referencing the first task. The data from Sharepoint only provides IDs, whereas I need to use the text strings (task names) in my report.

 

Any help would be much appreciated! Thanks

2 ACCEPTED SOLUTIONS
Zubair_Muhammad
Community Champion
Community Champion

@willboyes

 

Try this Column

 

Column =
LOOKUPVALUE ( [Text String], [ID], [ID 2] )

lkup.png


Regards
Zubair

Please try my custom visuals

View solution in original post

@willboyes

 

With Power Query, you can do a self merge of the Table

 

lkup1.png

 


Regards
Zubair

Please try my custom visuals

View solution in original post

6 REPLIES 6
Zubair_Muhammad
Community Champion
Community Champion

@willboyes

 

Try this Column

 

Column =
LOOKUPVALUE ( [Text String], [ID], [ID 2] )

lkup.png


Regards
Zubair

Please try my custom visuals

Thanks very much - that's working now, not sure what I was doing wrong before!

If I wanted to replicate that approach in the query editor, how could I go about it?  

@willboyes

 

With Power Query, you can do a self merge of the Table

 

lkup1.png

 


Regards
Zubair

Please try my custom visuals

Hello,

 

I have a similar situation within a table that has a lot of columns and data also coming from other tables in a pretty complex model.

 

When I add that Merge step, followed by an Expand step, it causes my refresh to get hung and my report will no longer update.

 

I tried creating a simplified copy of the table to Merge and Expand from, but I am still running into the same issue.  

 

Any idea/suggestion?

Brilliant - worked first time!

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