Removing duplicates

[EmilyM2019]

Hello all,

I have a table of data recording when someone last had a performance review. My date parameters are the last rolling 12 months. Unfortunatey the review doesn't always get done on the due date and so sometimes I end up with 2 review dates taking place in the same 12 month period. For example:

I would like to remove the dulicates, making sure that the most recent PDR complete date remains.

Is there an easy way to do this?

I'm still new to Power BI so i'm not familiar with all the terminology so thank you and sorry in advance if I ask lots of follow up questions.

Many thanks,

Emily.

[Icey]

Hi @EmilyM2019 ,

Some workarounds for reference:

1. You can remove duplicate by using Group by in Power BI Query Editor.

Set it up just like the settings in the picture.

Then, create a custom column.

=let mydate = [PDR complete date] in
Table.SelectRows([All Rows],each[PDR complete date] = mydate)

Then, expand the columns you need and delete the All Rows column.

Duplicates are removed and the most recent PDR complete date remains.

2.  You can also use Group by as follows.

The result is as follows.

3. You can as well use Group by as follows.

Then you expand the columns you need and remove the duplicates.

4. You can try this measure which use LOOKUPVALUE function.

Measure = 
LOOKUPVALUE (
    'Table'[PDR complete date],
    'Table'[PDR complete date], CALCULATE (
        MAX ( 'Table'[PDR complete date] ),
        ALLEXCEPT ( 'Table', 'Table'[Name] )
    )
)

You can check more details from here.

Best Regards,

Icey

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[amitchandak · Accepted solution]

@EmilyM2019 , refer if this can help

https://www.youtube.com/watch?v=rqDdnNxSgHQ

[EmilyM2019]

Thank you, really helpful.