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ronhs
Frequent Visitor

Tagging data base on dynamic time period

I have a dataset which include two columns, ID and order time.
I want to create a new column to tag two type of value.
The definition of value is below:
New : before current order time never appear in previous time.
Existing : exclude "New" tag data.

I'm trying to create a loop like structure to filter time period and merge filter data to genarate what I want, but it's look like so inefficient...

sample data is below:

ORDER_TIMEID
2022/12/1a
2021/12/3b

I want to genarate tags below:

ORDER_TIMEIDCUSTOMER_TYPE
2022/12/1aEXISTING
2021/12/3bNEW

Is there any faster way to tagging data?

1 ACCEPTED SOLUTION
v-yanjiang-msft
Community Support
Community Support

Hi @ronhs ,

According to your description, here's my solution. Add a custom column in Power Query.

if [ORDER_TIME]=List.Min(#"Changed Type"[ORDER_TIME])then"New"else"EXISTING"

Get the result:

vkalyjmsft_0-1670220925852.png

Here's the whole M syntax, you can copy-paste it in a blank query to see the details.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMtI3BCIlHaVEpVgdsIghSMQYKJKkFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ORDER_TIME = _t, ID = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ORDER_TIME", type date}, {"ID", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "CUSTOMER_TYPE", each if [ORDER_TIME]=List.Min(#"Changed Type"[ORDER_TIME])then"New"else"EXISTING")
in
    #"Added Custom"

I attach my sample below for your reference.

 

Best Regards,
Community Support Team _ kalyj

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

View solution in original post

2 REPLIES 2
v-yanjiang-msft
Community Support
Community Support

Hi @ronhs ,

According to your description, here's my solution. Add a custom column in Power Query.

if [ORDER_TIME]=List.Min(#"Changed Type"[ORDER_TIME])then"New"else"EXISTING"

Get the result:

vkalyjmsft_0-1670220925852.png

Here's the whole M syntax, you can copy-paste it in a blank query to see the details.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwMtI3BCIlHaVEpVgdsIghSMQYKJKkFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ORDER_TIME = _t, ID = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ORDER_TIME", type date}, {"ID", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "CUSTOMER_TYPE", each if [ORDER_TIME]=List.Min(#"Changed Type"[ORDER_TIME])then"New"else"EXISTING")
in
    #"Added Custom"

I attach my sample below for your reference.

 

Best Regards,
Community Support Team _ kalyj

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

lbendlin
Super User
Super User

You can do that with measures. Please provide sanitized sample data that fully covers your issue.
https://community.powerbi.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-...
Please show the expected outcome based on the sample data you provided.

https://community.powerbi.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523

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