Forum Discussion
Post ProdigyHow to lookup values in another table in the Query Editor?
Hi Shelley,
Please check out the demo in the attachment. It's a solution in Power Query (the Custom column).
(let currentCustomer = [CustomerName] in Table.SelectRows(Table1, each [CustomerName] = currentCustomer)){0}[CustomerID]Best Regards,
Dale
Post ProdigyThe reason I want to do this is because I need to make a Key column that is Customer#|Region. I am trying to tie a whole bunch of fact tables together with a Link Table, using the key I create from customer# + region. If I don't create the key in the Query Editor, I was thinking the DAX will be slower.
Solution SageMethods outlined in previous posts will handle it.
You just need to add another column/step to concatenate column values.
Using Column Merge tool, or adding custom column = [Column1] & [Column2]
- Shelley
Chihiro, thanks for the input. Doesn't the Merge feature though make a big table with columns from both? In the end, I only want to add a key column. Would I merge them and then delete all the extra columns? I guess I've never really grasped Power BI's merge and append functions. They seem to work a little differently than I expect whenever I've tried to use them.