power query - List.Distinct 函数如何应用

Question

我正在做实验室功率查询和测试实验室如何使用 List.Distinct 功能。它总是给我错误（我会附上照片）我的查询代码：

let
    Source = Excel.CurrentWorkbook(){[Name="Table6"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Subject", type text}, {"Body.TextBody", type text}, {"Id", type text}, {"Sender Add", type text}, {"To Add", type text}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type",{"Body.TextBody", "Subject"}),
    #"Removed Columns1" = Table.RemoveColumns(#"Removed Columns",{"Sender Add"}),
    #"Added Custom" = Table.AddColumn(#"Removed Columns1", "Custom", each List.Distinct([To Add]), type text)
in
    #"Added Custom"

更新错误截图

我想删除“添加”列中的重复电子邮件并将它们放入新列中你能帮忙帮忙吗？

Answer 1

您需要将该文本转换为列表。

例如尝试使用 Text.Split。

没有测试但应该是这样的：

let
    Source = Excel.CurrentWorkbook(){[Name="Table6"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Subject", type text}, {"Body.TextBody", type text}, {"Id", type text}, {"Sender Add", type text}, {"To Add", type text}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type",{"Body.TextBody", "Subject"}),
    #"Removed Columns1" = Table.RemoveColumns(#"Removed Columns",{"Sender Add"}),
    #"Added Custom" = Table.AddColumn(#"Removed Columns1", "Custom", each List.Distinct(Text.Split([To Add],";")), type text)
in
    #"Added Custom"

然后扩展您的自定义字段。

Answer 2

如果您尝试将每行的不同项目放入与每行相邻的新列中，请尝试

= Table.AddColumn(#"priorstep", "Custom", each Text.Combine(List.Distinct(Text.Split([To Add],"; ")),"; "))

如果您试图同时从所有行中获取不同的项目，请尝试

= Table.FromList(List.Distinct(List.Combine(List.Transform((Source[To Add]), each Text.Split(_,"; ")))))

power query - List.Distinct 函数如何应用

power query - List.Distinct function how to apply it

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