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dsabsi's avatar
dsabsi
Advocate I
9 years ago
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How to convert text (data type) to a date (data type)?

Hello guys,    I need your help with converting a text column towards a data type.  Should i add a column with a certain formula to achieve this?    See below the error that I'm getting from thi...
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  • MarcelBeug's avatar
    MarcelBeug
    9 years ago

    Sure (I included some Dutch as well :-) ):

     

    let
    Source = #table(type table[Verwachte_Start = text],{{"1499032800"},{"1498860000"},{"1493589600"},{"1491170400"}}),
    AddedUTCDateTime = Table.AddColumn(Source, "Verwachte_startdatum/tijd_UTC", each #datetimezone(1970,1,1,0,0,0,0,0) + #duration(0,0,0,Number.From([Verwachte_Start])), type datetimezone),
    AddedLocalDate = Table.AddColumn(AddedUTCDateTime, "Verwachte_startdatum_lokaal", each Date.From([#"Verwachte_startdatum/tijd_UTC"]), type date)
in
    AddedLocalDate
dsabsi's avatar
dsabsi
Advocate I
9 years ago

Hi Guys AnonymousSivaManiMarcelBeugblopez11, 

 

I found out that the text value is an epoch value in a text value. 

Do you know how to convert an epoch value in a text format to dates value in date format? 

 

Cheers, 

 

DSabsi

MarcelBeug's avatar
MarcelBeug
Community Champion
9 years ago

Sure (I included some Dutch as well :-) ):

 

let
    Source = #table(type table[Verwachte_Start = text],{{"1499032800"},{"1498860000"},{"1493589600"},{"1491170400"}}),
    AddedUTCDateTime = Table.AddColumn(Source, "Verwachte_startdatum/tijd_UTC", each #datetimezone(1970,1,1,0,0,0,0,0) + #duration(0,0,0,Number.From([Verwachte_Start])), type datetimezone),
    AddedLocalDate = Table.AddColumn(AddedUTCDateTime, "Verwachte_startdatum_lokaal", each Date.From([#"Verwachte_startdatum/tijd_UTC"]), type date)
in
    AddedLocalDate
  • dsabsi's avatar
    dsabsi
    Advocate I
    9 years ago

    Hi MarcelBeug, 

     

    Thank you for your answer (and of course in Dutch ;) I appreciate that. 

     

    Should I try your formula in a column or through edit-queries? 

     

    Cheers, 

     

    DSabsi

    • MarcelBeug's avatar
      MarcelBeug
      Community Champion
      9 years ago

      My solutions are always (99.9%) via Edit Queries.

  • dsabsi's avatar
    dsabsi
    Advocate I
    9 years ago

    Hi MarcelBeug, 

     

    Thank you for your solution, you're great!

    I also learned that an alternative to this is: 

    1. Convert the text to a number by the following formula (creat new column) : Verwachte start number = value([verwachte_start] )/(60*60*24) 

    2. Convert the value to a year date format (create new column) : Verwachte StartJaar = YEAR(IF([Verwachte start number] = BLANK() ;BLANK();DATEVALUE("01/01/1970") + [Verwachte start number])) 

     

    Cheers, 

     

    DSabsi