Pulling referential label descriptions from label table

[JohnAnderson]

New here and new to Power BI.  Working with a 3rd party DB that has many tables with integers stored in many monthly fields (month 1, month 2...)  in each table.  These integer values relate to one table of master labels, value1 = label1 "AA" 2="BB" ... Is there a way (function, command) that will allow me to join these multiple fields into this "Label" table?  My attempts so far only allow me to have 1 join to this table (month1 to value)?  Do I have to handle this as a conversion on the query/model level?

Table1, record 1

tbl1.month1=3

tbl1.month2=5

tbl1.month3=1

tbl1.year =2016

...

Table1, record 2

tbl1.month1=2

tbl1.month2=1

tbl1.month3=4

tbl1.year=2016

...

TableL.record 1

tblL.value=1

tblL.description="AA"

TableL.record 2

tblL.value=2

tblL.description="BB"

...

Sorry this seems like something I should be able to figure out but how do I join the fields tbl.month1 and tbl.month2 and ... to tblL.value to get tblL.description on the report?  must be simple and I am just missing something from the training vids but I have not been able to figure it out.  Any help for a newbie would be appreciated.

John

John

[v-yulgu-msft]

Hi @JohnAnderson,

Have you worked it out? If so, would you please mark the helpful reply as an answer so that it can benefit more users? If you still have any question, please feel free to ask.

Thanks,
Yuliana Gu

[v-yulgu-msft]

Hi @JohnAnderson,

Based on my understanding, your table structure might be:

 

To Join these two tables based on values for each month in Table1 and [Value] in TableL, you should first Unpivot Table1. Select columns Month1, Month2, Month3... then, click "Unpivot Columns" option under Transform tab in Query Editor mode.

Then, merge these two tables. (Home -> Merge queries as new)

If above result doesn't meet your requirement, please figure out how to join tables and show us your desired output with image.

Regards,
Yuliana Gu

[ImkeF]

Hi John,

it would be easiest if you unpivot the month-columns of your Table1, then merge the TableL on the (newly created) attribut-column, and - if necessary - pivot back.

But normally, the pivot-back operation is not such a good idea for a data model.