Help to create a column with data from table B in table A

[Anonymous]

Hello,

I'm newbie with Power BI and always that I with some trouble you guys help me and I appreciate for this.

Well, here I am with one more trouble.

I have two tables:

Table "Before:"

Week	Order	Row	Error
20	107200485	10	1095
20	107200485	20	1095
20	107241520	20	1095
20	107241520	40	1095
20	107241520	90	1095
20	107244875	260	1095

Table "After":

Week	Order	Row	Error
20	107200485	10	G9
20	107200485	20	95
20	107241520	40	95
20	107244875	260	1095

So what i need?

I need to create a measure (or column, whatever it's easier) on table "Before" to see the column "ERROR" from "After" but the rows from Before that doen't exist on "After" must be filled with "Done"

Expected output:

Table "Before"

Week	Order	Row	Error	Error After
20	107200485	10	1095	G9
20	107200485	20	1095	95
20	107241520	20	1095	Done
20	107241520	40	1095	95
20	107241520	90	1095	Done
20	107244875	260	1095	1095

I linked both tables using the following relantionship:

Base 1 = Table Before

Base Chile LBD = Table After

PL = Columns Order + Row (to create a unique key)

That's it, i hope someone could help me and if i wasn't clear enough, please, let me know

[Anonymous · Accepted solution]

Hi @Anonymous,

I think you can create a calculated column with lookupvalue function to get value from another table based on relationship keys. (notice: the table relationship not necessary)

LOOKUPVALUE function (DAX) - DAX | Microsoft Docs

Regards,

Xiaoxin Sheng