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

Earn the coveted Fabric Analytics Engineer certification. 100% off your exam for a limited time only!

Reply
Syndicate_Admin
Administrator
Administrator

How To Dynamic Rename Column Headers: [Month] & [Current Year] in P. Query

I am new beginner of Power Query. My current raw data (1st screenshot below) consists of column headers (Column B - M) without [Year Name]. 

 
Column AColumn BColumn CColumn DColumn EColumn FColumn GColumn HColumn IColumn JColumn KColumn LColumn M
 JanFebMarAprMayJuneJuly AugSeptOctNovDec
Sales100100100100100100100100100100100100
Expense100100100100100100100100100100100100

 

 

I manually added in [2022] in Query Editor for all months (Jan - Dec). However, when come to next year, i will have to do the similiar manual exercise to replace col. header with [2023], which bit inefficient. 

 

 

 

Table.RenameColumns(#"Removed Columns2",{"Jan", "Jan 2022"}, {"Feb", "Feb 2022"}, {"Mar", "Mar 2022}, {"Apr", "Apr 2022"}, {"May", "May 2022", {"June", "Jun 2022"}, {"Jul", "Jul 2022"}, {"Aug", "Aug 2022"}, {"Sep", "Sep 2022"}, {"Oct", "Oct 2021"}, {"Nov", "Nov 2022"}, {"Dec", "Dec 2022"}})

 

 

 

Wonder if any efficient way to write in M language that can auto rename "Year" In Column header, base on input in Excel cell below? 

 

let's assume i key in "2023" in Excel Cell A1 in another worktab within same workbook. 

Year
2023
 

Table.RenameColumns(#"Removed Columns2",{{{"Jan", "Jan 2022"}, {"Feb", "Feb 2022"}, {"Mar", "Mar 2022"}, {"Apr", "Apr 2022"}, {"May", "May 2022"}, {"Jun", "Jun 2022"}, {"Jul", "Jul 2022"}, {"Aug", "Aug 2022}, {"Sep", "Sep 2022"}, {"Oct", "Oct 2022"}, {"Nov", "Nov 2022"}, {"Dec", "Dec 2022"}})

 

wonder if any better way which i can dynamic col. header name in P.Query Editor, base on [Year] selection from excel cell A1, and concentrate with [Month]? 

 

 

 

 

 

 

 

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

Hi @Syndicate_Admin ,

According to your description, here's my solution. Add the step in Advanced Editor:

#"Rename"=let 
_Year=Text.From(Date.Year(Date.From(DateTime.LocalNow()))) 
in 
Table.RenameColumns(#"Removed Columns2",{{"Jan", "Jan "&_Year}, {"Feb", "Feb "&_Year}, {"Mar", "Mar "&_Year}, {"Apr", "Apr "&_Year}, {"May", "May "&_Year}, {"Jun", "Jun "&_Year}, {"Jul", "Jul "&_Year}, {"Aug", "Aug "&_Year}, {"Sep", "Sep "&_Year}, {"Oct", "Oct "&_Year}, {"Nov", "Nov "&_Year}, {"Dec", "Dec "&_Year}})

I define a variable _Year in the code, which will automatically get the current year. When year 2023 comes, it will automatically changes to 2023 without enter in the Excel.

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

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUTICYmMgNgFiUyA2A2JzILYAYksgNjQAESCVhkZKsbEA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Jan = _t, Feb = _t, Mar = _t, Apr = _t, May = _t, Jun = _t, Jul = _t, Aug = _t, Sep = _t, Oct = _t, Nov = _t, Dec = _t]),
    #"Removed Columns2" = Table.TransformColumnTypes(Source,{{"Jan", Int64.Type}, {"Feb", Int64.Type}, {"Mar", Int64.Type}, {"Apr", Int64.Type}, {"May", Int64.Type}, {"Jun", Int64.Type}, {"Jul", Int64.Type}, {"Aug", Int64.Type}, {"Sep", Int64.Type}, {"Oct", Int64.Type}, {"Nov", Int64.Type}, {"Dec", Int64.Type}}),
    #"Rename"=let _Year=Text.From(Date.Year(Date.From(DateTime.LocalNow()))) in Table.RenameColumns(#"Removed Columns2",{{"Jan", "Jan "&_Year}, {"Feb", "Feb "&_Year}, {"Mar", "Mar "&_Year}, {"Apr", "Apr "&_Year}, {"May", "May "&_Year}, {"Jun", "Jun "&_Year}, {"Jul", "Jul "&_Year}, {"Aug", "Aug "&_Year}, {"Sep", "Sep "&_Year}, {"Oct", "Oct "&_Year}, {"Nov", "Nov "&_Year}, {"Dec", "Dec "&_Year}})
in
    #"Rename"

Result:

vkalyjmsft_0-1668060111325.png

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

1 REPLY 1
v-yanjiang-msft
Community Support
Community Support

Hi @Syndicate_Admin ,

According to your description, here's my solution. Add the step in Advanced Editor:

#"Rename"=let 
_Year=Text.From(Date.Year(Date.From(DateTime.LocalNow()))) 
in 
Table.RenameColumns(#"Removed Columns2",{{"Jan", "Jan "&_Year}, {"Feb", "Feb "&_Year}, {"Mar", "Mar "&_Year}, {"Apr", "Apr "&_Year}, {"May", "May "&_Year}, {"Jun", "Jun "&_Year}, {"Jul", "Jul "&_Year}, {"Aug", "Aug "&_Year}, {"Sep", "Sep "&_Year}, {"Oct", "Oct "&_Year}, {"Nov", "Nov "&_Year}, {"Dec", "Dec "&_Year}})

I define a variable _Year in the code, which will automatically get the current year. When year 2023 comes, it will automatically changes to 2023 without enter in the Excel.

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

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUTICYmMgNgFiUyA2A2JzILYAYksgNjQAESCVhkZKsbEA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Jan = _t, Feb = _t, Mar = _t, Apr = _t, May = _t, Jun = _t, Jul = _t, Aug = _t, Sep = _t, Oct = _t, Nov = _t, Dec = _t]),
    #"Removed Columns2" = Table.TransformColumnTypes(Source,{{"Jan", Int64.Type}, {"Feb", Int64.Type}, {"Mar", Int64.Type}, {"Apr", Int64.Type}, {"May", Int64.Type}, {"Jun", Int64.Type}, {"Jul", Int64.Type}, {"Aug", Int64.Type}, {"Sep", Int64.Type}, {"Oct", Int64.Type}, {"Nov", Int64.Type}, {"Dec", Int64.Type}}),
    #"Rename"=let _Year=Text.From(Date.Year(Date.From(DateTime.LocalNow()))) in Table.RenameColumns(#"Removed Columns2",{{"Jan", "Jan "&_Year}, {"Feb", "Feb "&_Year}, {"Mar", "Mar "&_Year}, {"Apr", "Apr "&_Year}, {"May", "May "&_Year}, {"Jun", "Jun "&_Year}, {"Jul", "Jul "&_Year}, {"Aug", "Aug "&_Year}, {"Sep", "Sep "&_Year}, {"Oct", "Oct "&_Year}, {"Nov", "Nov "&_Year}, {"Dec", "Dec "&_Year}})
in
    #"Rename"

Result:

vkalyjmsft_0-1668060111325.png

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.

Helpful resources

Announcements
April AMA free

Microsoft Fabric AMA Livestream

Join us Tuesday, April 09, 9:00 – 10:00 AM PST for a live, expert-led Q&A session on all things Microsoft Fabric!

March Fabric Community Update

Fabric Community Update - March 2024

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

Top Solution Authors
Top Kudoed Authors