Forum Discussion

MarCat's avatar
MarCat
Regular Visitor
4 years ago
Solved

Get Data 'From Web' not showing all columns

Trying to retrieve data (Get data) 'From Web' https://en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs. 

 

When I select the second HTML table 'Known star systems within 20 light-years....' it only shows 5 columns, whereas there are actually 11 columns.  Any clue what's happening here?  Somehow I believe this worked fine in earlier versions of Power-BI.

 

Seen some solutions that mention opening the web page with Lines.FromBinary, instead of Web.Page, followed by a whole lot of hardcoded lines, but surely this ain't a very friendly way for accessing data that is clearly already formatted in proper tabular format.

Need Help
  • Anonymous's avatar
    Anonymous
    4 years ago

    Hi MarCat ,

     

    Could this code return correct table?

     

    let
    Source = Web.BrowserContents("https://en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs"),
    #"Extracted Table From Html" = Web.Page(Source),
    Data = #"Extracted Table From Html"{1}[Data]
in
    Data

     

    If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
    Best Regards,
    Winniz
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

  • MarCat's avatar
    MarCat
    4 years ago

    Yes, that worked.  However, having said that, it hardly makes using Power BI any friendlier.  Power BI works great for simple stuff, but any time you're faced with a real-world problem it doesn't seem up to the task, which is kind of really disappointing.  Anyways, thanks for your time and support, that's really appreciated and makes using this community part of Power BI really worthwhile.  

4 Replies

  • Anonymous's avatar
    Anonymous
    Not applicable
    4 years ago

    Hi MarCat ,

     

    I can get all columns using the Web.Page function.

     

    let
    Source = Web.BrowserContents("https://en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs"),
    #"Extracted Table From Html" = Web.Page(Source),
    Data = #"Extracted Table From Html"{1}[Data],
    #"Changed Type" = Table.TransformColumnTypes(Data,{{"Designation System", type text}, {"Designation Star or (sub-) brown dwarf", type text}, {"Distance (ly (±err))[6]→→", type text}, {"Constellation", type text}, {"Coordinates: RA, Dec (Ep J2000, Eq J2000)[5]", type text}, {"Stellar class", type text}, {"Mass M☉", type text}, {"Magnitude (mV[5] or mJ) App.", type text}, {"Magnitude (mV[5] or mJ) Abs.", type text}, {"Parallax (mas (±err)) [5][note 1]", type text}, {"Notes and additional references", type text}})
in
#"Changed Type"

     

    If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
    Best Regards,
    Winniz
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

    • MarCat's avatar
      MarCat
      Regular Visitor
      4 years ago

      Nope... If I try the above script then I get the following error:
      Expression.Error: The column 'Coordinates: RA, Dec (Ep J2000, Eq J2000)[5]' of the table wasn't found.
      Details: Coordinates: RA, Dec (Ep J2000, Eq J2000)[5]

      • Anonymous's avatar
        Anonymous
        Not applicable
        4 years ago

        Hi MarCat ,

         

        Could this code return correct table?

         

        let
    Source = Web.BrowserContents("https://en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs"),
    #"Extracted Table From Html" = Web.Page(Source),
    Data = #"Extracted Table From Html"{1}[Data]
in
    Data

         

        If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.
        Best Regards,
        Winniz
        If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.