Table structure/modelling issue - cannot get table structure right

HI , RichardMo 

According to your description, you want to group by your column , but your columns contains the calculated columns and can not be unpivoted.

For your need, i think the best way is used dax to unpivot your table.

My test data is like this:

We can click "New Table" and enter this:

Table 2 = UNION( SELECTCOLUMNS('Table',"Person ID",[Person ID] , "City",[City] , "Category" , [Category] , "Date", [Booking date] , "Type", "Booking"),

SELECTCOLUMNS('Table',"Person ID",[Person ID] , "City",[City] , "Category" , [Category] , "Date", [Session 1] , "Type", "Session1")   ,

SELECTCOLUMNS('Table',"Person ID",[Person ID] , "City",[City] , "Category" , [Category] , "Date", [Session 2] , "Type", "Session2")   ,

SELECTCOLUMNS('Table',"Person ID",[Person ID] , "City",[City] , "Category" , [Category] , "Date", [Test] , "Type", "Test") ,

SELECTCOLUMNS('Table',"Person ID",[Person ID] , "City",[City] , "Category" , [Category] , "Date", [Results] , "Type", "Results")

  )

 

 

Then we can get the result as follows and you can create some visual in your logic need:

 

For more information, you can refer to :
powerbi - Is it possible to unpivot in Power BI using DAX? - Stack Overflow

 

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

 

Best Regards,

Aniya Zhang

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