扩展合并功率查询

Question

我正在创建一个 Excel 电子表格，它提供有关输入股票的实时信息。 这是通过在 Power Query 中使用 API 请求来完成的。

Json.Document(Web.Contents("https://pro-api.coinmarketcap.com/v1/cryptocurrency/quotes/latest?symbol=" & #"Added Index"{[Index]}[Column1]))

当我展开此选项卡时，它将记录分成不同的列。 是否可以将所有分离的列合并为一列？

Answer 1

从第 20 行开始，您可以根据您的场景调整以下内容

let
  Source = Table.FromRows(
    Json.Document(
      Binary.Decompress(
        Binary.FromText("i45WclSK1YlWclKKjQUA", BinaryEncoding.Base64), 
        Compression.Deflate
      )
    ), 
    let
      _t = ((type nullable text) meta [Serialized.Text = true])
    in
      type table [Column1 = _t]
  ), 
  #"Changed Type" = Table.TransformColumnTypes(Source, {{"Column1", type text}}), 
  #"Added Custom" = Table.AddColumn(
    #"Changed Type", 
    "Custom", 
    each [First = "First", Second = "Second"]
  ), 
  #"Added Custom1" = Table.AddColumn(
    #"Added Custom", 
    "Custom.1", 
    each 
      let
        x = [Custom], 
        L = Record.ToList(x), 
        Loop = List.Generate(
          () => [i = 0, j = 0, k = {L{0}}, comb = "0"], 
          each [i] < List.Count(L), 
          each [i = [i] + 1, j = i, k = {L{j}}, comb = Text.Combine(List.Combine({[k], k}), ",")], 
          each [comb]
        ), 
        c = Loop{List.Count(Loop) - 1}
      in
        c
  ), 
  #"Removed Columns" = Table.RemoveColumns(#"Added Custom1", {"Custom"})
in
  #"Removed Columns"