Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI DataViz World Championships are on! With four chances to enter, you could win a spot in the LIVE Grand Finale in Las Vegas. Show off your skills.

Reply
vishal140197
Frequent Visitor

Power Query Updating a row

I am trying to do this in Power BI. Whether DAX or Power Query anything would be useful.

I have 2 columns one is 'Date' and the other is 'Version Number'.

I want to update the dates where 'Version Number' is Version_1 and 'Date' is blank to the dates where 'Version Number' is Version_2 and 'Date' is not blank.

Basically if Version_2 has a date and Version_1 doesn't have a date then the dates of these Version_2 should be copied to Version_1 dates.

Tried nested ifs in power query and DAX but not able to achieve the desired result.

3 REPLIES 3
ChiragGarg2512
Super User
Super User

@vishal140197 share a sample data in tabular form.

Project NumberDateVersion Number
1234 Version_1
1234501/01/2021Version_1
1234 Version_1
123420/11/2022Version_2
123420/11/2022Version_2
123420/11/2022Version_2
1234 Version_1
123421/11/2022Version_3
123421/11/2022Version_5
1234521/11/2022Version_2
123421/11/2022Version_4
   

@vishal140197 

let
    Source = your_table,
    fx_v2_date = (tbl as table) as table =>
        [v2_date = Table.SelectRows(tbl, each [Version Number] = "Version_2"){0}[Date]?,
        v1_change = 
            Table.ReplaceValue(
                tbl, each [Version Number], v2_date, 
                (v, o, n) => 
                    if v = null and o = "Version_1" 
                    then n else v, {"Date"}
            )][v1_change],
    group = 
        Table.Group(
            Source, {"Project Number"}, 
            {{"all", fx_v2_date}}
        ),
    expand = Table.ExpandTableColumn(group, "all", {"Date", "Version Number"})
in
    expand

 

 

Helpful resources

Announcements
Feb2025 Sticker Challenge

Join our Community Sticker Challenge 2025

If you love stickers, then you will definitely want to check out our Community Sticker Challenge!

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.

Top Solution Authors
Top Kudoed Authors