help needed with Group by

[SINGHTX9]

Hi All

I was trying to group by my data by Receive Hour as i need to know the sum of number of tests received per hour but i m getting the following. does anyone know the solution?

[v-yulgu-msft]

Hi @SINGHTX9,

Please follow MarcelBeug's suggestions in below links to check your problem:

Expression Error.: The key didn't match any rows in the table

The key didn't match any rows in the table. Table

Best regards,

Yuliana Gu

[SINGHTX9]

Hi Yuliana I tried all the possible suggestion mentioned in the post but still the error hasnt gone. My fear is that my file has been corrupted as now i cant prpgress any further with building my dashboard because whenever i go to edit query mode, the same message appears.

Please help me urgently.

[Anonymous]

Hi

You can do this in DAX, and it is better too as it dont consume your memory.

Cretae a measure SUM( table1[No.of Test] ). Pull the recive hr field and the measure to gett he no of test taken by receive hr.

Thanks
Raj