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我需要使用 PQ 复制多个列，是的，我可以手动执行 10 个步骤或 1 个纠缠步骤和 10 个复制列命令。

虽然我在添加我使用的列时遇到了类似的问题：

#"Added Custom" =
  Table.AddColumn(#"Changed Type", "record", each [
      Custom = "DTO",
      #"Custom.1" = Date.ToText([Accounting Date],"YYYYMMDD"),
      #"Custom.2" = "SA",
      #"Custom.3" = "DTO " & Date.ToText([Accounting Date], "yyyy.MM"),
      #"Custom.4" = null,
      #"Custom.5" = null,
      #"Custom.6" = null,
      #"Custom.7" = null,
      #"Custom.8" = null,
      #"Custom.9" = if Text.StartsWith([General Ledger Code],"5") then [Cost Center] else null,
      #"Custom.10" = null,
      #"Custom.11" = null,
      #"Custom.12" = null,
      #"Custom.13" = if Text.StartsWith([General Ledger Code], "5") then "IF" else null
    ]),
#"Expanded record" = Table.ExpandRecordColumn(#"Added Custom", "record", {"Custom", "Custom.1", "Custom.2", "Custom.3", "Custom.4", "Custom.5", "Custom.6", "Custom.7", "Custom.8", "Custom.9", "Custom.10", "Custom.11", "Custom.12", "Custom.13"}, {"Custom", "Custom.1", "Custom.2", "Custom.3", "Custom.4", "Custom.5", "Custom.6", "Custom.7", "Custom.8", "Custom.9", "Custom.10", "Custom.11", "Custom.12", "Custom.13"}),

它适用于添加列

但是我在尝试复制它时失败了：

#"Duplicated test" = Table.AddColumn(#"Expanded record", "duplicated", each [
      #"Custom.14" = Table.DuplicateColumn(#"Expanded record", "Custom.1", "Custom.1 - Copy"),
      #"Custom.15" = Table.DuplicateColumn(#"Expanded record", "Custom.3", "Custom.3 - Copy")     
]),
#"Expanded duplicated" = Table.ExpandRecordColumn(#"Duplicated test", "duplicated", {"Custom.14", "Custom.15"}, {"Custom.14", "Custom.15"}),

扩展列后，我收到了整个表，而不仅仅是 2 个额外的列。

有没有办法像添加列一样简化复制列？

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1 回答 1

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是的，您可以像第一步一样使用函数来简化复制列Table.AddColumn，不需要Table.DuplicateColumn函数：

#"Added Custom1" = Table.AddColumn(#"Expanded record", "duplicated", each [
        Custom.14 = [Custom.1],
        Custom.15 = [Custom.3]
        ]),
#"Expanded duplicated" = Table.ExpandRecordColumn(#"Added Custom1", "duplicated", {"Custom.14", "Custom.15"}, {"Custom.14", "Custom.15"})
于 2021-09-11T18:38:43.570 回答