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Andries_Benade
New Member

Reference a column from another table in Power Query Editor new column function/query

I want to add a column that counts the number of items that has the foreign ID in one of the corresponding row ID in another table using Power Query Editor and a formula. The formula I improvised is: List.Count(List.Select([Device.ID],[Device.ZoneID]=[ID]))

 

It just throws out an error as I expected since the Device.ID and Device.ZoneID columns aren't found. How do I accomplish this?

1 ACCEPTED SOLUTION
KNP
Super User
Super User

Thanks for the data. That makes it much easier.

I'd probably tackle it with a merge.

See attached PBIX file. 

Let me know if you have questions.

 

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KIfp67uy-Sr
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View solution in original post

6 REPLIES 6
KNP
Super User
Super User

Thanks for the data. That makes it much easier.

I'd probably tackle it with a merge.

See attached PBIX file. 

Let me know if you have questions.

 

Have I solved your problem?
Please click Accept as Solution so I don't keep coming back to this post, oh yeah, others may find it useful also ;).
chrome-9xf-Zagzel-B

If you found this post helpful, please give Kudos.
It gives me a sense of instant gratification and, if you give me Kudos enough times, magical unicorns will appear on your screen.
If you find my signature vaguely amusing, please give Kudos.
KIfp67uy-Sr
Proud to be a Super User!PBI-Super-User-Rank-30x30-1x
KNP
Super User
Super User

Any chance you could paste the data in a table instead of screenshots?

 

Have I solved your problem?
Please click Accept as Solution so I don't keep coming back to this post, oh yeah, others may find it useful also ;).
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If you found this post helpful, please give Kudos.
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KIfp67uy-Sr
Proud to be a Super User!PBI-Super-User-Rank-30x30-1x

Device

IDDevice NameCategory IDZone IDStatusIs ActiveDate Installe
D01Front-door CameraCameraTerrazzoActiveTRUE1/25/2020
D02Boiler TempTemperature SensorBoilermaker RoomInactiveTRUE2/2/2021
D03Speed TestingSpeed SensorSafety OfficeActiveTRUE12/11/2021
D04Entry AccessAccess ControlStucco Mason BuildingActiveTRUE3/21/2022
D05Exit AccessAccess ControlStucco Mason BuildingInactiveFALSE3/21/2022
D06Light ActivationMotion SensorLabor OfficeInactiveFALSE5/17/2021
D07Front-door CameraCameraEnvironmental OfficeActiveTRUE8/1/2021
D08Aircon ActivationMotion SensorTile Setting BenchInactiveFALSE8/26/2021
D09Assembly TempTemperature SensorLinemen AssemblyInactiveFALSE1/23/2022

 

Zone

IDZoneNameZoneDescription
Z01Terrazzo13-175 - Ice Rinks
Z02Boilermaker Room2-870 - Sculpture/Ornamental
Z03Safety Office17-030 - Bond
Z04Stucco Mason Building2-750 - Concrete Pads and Walks
Z05Iron Workshop3-400 - Precast Concrete
Z06Labor Office1-523 - Sanitary Facilities
Z07Environmental Office2-370 - Erosion and Sedimentation Control
Z08Tile Setting Bench1-570 - Temporary Controls
Z09Linemen Assembly2-825 - Wood Fences and Gates
KNP
Super User
Super User

Can you please provide some sample (mock-up) data from each of the two tables?

It'll be much easier to help with something to work with.

 

Have I solved your problem?
Please click Accept as Solution so I don't keep coming back to this post, oh yeah, others may find it useful also ;).
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KIfp67uy-Sr
Proud to be a Super User!PBI-Super-User-Rank-30x30-1x

I made a new query/function that seems to better express what I want to do (Device Count)

Screenshot (133).png

Device

Device.png

 

Zone

Zone.png

  

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