如何在 Power BI 中合并两个基于非键表的表

Question

我有 3 个 csv 输入到 Power BI，其中两个包含来自 2 个不同服务的时间跟踪信息，一个包含从它们的名称到各自 ID 的映射，如以下列标题所示：

1. {Timestamp, 7P_ID, time_tracked, Work item type, ... }
2. {Timestamp, ZD_ID, time_tracked, ticket id, ... }（它们有一些不同的列标题）
3. {employee_name, 7P_ID, ZD_ID}

我想制作一个表格（或至少以某种方式组合这些数据）来组合这些表格，所以我有以下标题：

{Timestamp, employee_name, time_tracked, Work item type, ticket id, ... }

有什么想法吗？

编辑：例如...

Timestamp	7P_ID	time_tracked	work item type
2021-09-02	333-3	90	task
...	...	...	...

Timestamp	ZD_ID	time_tracked	ticket id
2021-09-03	444-444	67	24601
...	...	...	...

Employee Name	7P_ID	ZD_ID
Jeff Bozos	333-3	444-444
...	...	...

我想要……

Timestamp	Employee name	time_tracked	work item type	ticket id
2021-09-02	Jeff Bozos	90	task
2021-09-03	Jeff Bozos	67		24601
...	...	...	...	...

当然会有多个员工，每个员工都会出现多次

编辑 2：或者，使用密钥文件将“名称”列附加到我的两次记录文件中也一样好，但这也是我不知道该怎么做的事情。

Answer 1

  let
  T1 = 
    let
      Source = Web.BrowserContents(
        "https://stackoverflow.com/questions/68212487/how-to-merge-two-tables-based-off-key-table-in-power-bi"
      ), 
      #"Extracted Table From Html" = Html.Table(
        Source, 
        {
          {"Column1", "DIV.s-table-container:nth-child(7) > TABLE.s-table > * > TR > :nth-child(1)"}, 
          {"Column2", "DIV.s-table-container:nth-child(7) > TABLE.s-table > * > TR > :nth-child(2)"}, 
          {"Column3", "DIV.s-table-container:nth-child(7) > TABLE.s-table > * > TR > :nth-child(3)"}, 
          {"Column4", "DIV.s-table-container:nth-child(7) > TABLE.s-table > * > TR > :nth-child(4)"}
        }, 
        [RowSelector = "DIV.s-table-container:nth-child(7) > TABLE.s-table > * > TR"]
      ), 
      #"Changed Type" = Table.TransformColumnTypes(
        #"Extracted Table From Html", 
        {
          {"Column1", type text}, 
          {"Column2", type text}, 
          {"Column3", type text}, 
          {"Column4", type text}
        }
      ), 
      #"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars = true]), 
      #"Changed Type1" = Table.TransformColumnTypes(
        #"Promoted Headers", 
        {
          {"Timestamp", type text}, 
          {"7P_ID", type text}, 
          {"time_tracked", type text}, 
          {"work item type", type text}
        }
      ), 
      #"Removed Bottom Rows" = Table.RemoveLastN(#"Changed Type1", 1), 
      #"Renamed Columns" = Table.RenameColumns(#"Removed Bottom Rows", {{"7P_ID", "ID"}})
    in
      #"Renamed Columns", 
  T2 = 
    let
      Source = Web.BrowserContents(
        "https://stackoverflow.com/questions/68212487/how-to-merge-two-tables-based-off-key-table-in-power-bi"
      ), 
      #"Extracted Table From Html" = Html.Table(
        Source, 
        {
          {"Column1", "DIV.s-table-container:nth-child(8) > TABLE.s-table > * > TR > :nth-child(1)"}, 
          {"Column2", "DIV.s-table-container:nth-child(8) > TABLE.s-table > * > TR > :nth-child(2)"}, 
          {"Column3", "DIV.s-table-container:nth-child(8) > TABLE.s-table > * > TR > :nth-child(3)"}, 
          {"Column4", "DIV.s-table-container:nth-child(8) > TABLE.s-table > * > TR > :nth-child(4)"}
        }, 
        [RowSelector = "DIV.s-table-container:nth-child(8) > TABLE.s-table > * > TR"]
      ), 
      #"Changed Type" = Table.TransformColumnTypes(
        #"Extracted Table From Html", 
        {
          {"Column1", type text}, 
          {"Column2", type text}, 
          {"Column3", type text}, 
          {"Column4", type text}
        }
      ), 
      #"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars = true]), 
      #"Changed Type1" = Table.TransformColumnTypes(
        #"Promoted Headers", 
        {
          {"Timestamp", type text}, 
          {"ZD_ID", type text}, 
          {"time_tracked", type text}, 
          {"ticket id", type text}
        }
      ), 
      #"Removed Bottom Rows" = Table.RemoveLastN(#"Changed Type1", 1), 
      #"Renamed Columns" = Table.RenameColumns(#"Removed Bottom Rows", {{"ZD_ID", "ID"}})
    in
      #"Renamed Columns", 
  T3 = 
    let
      Source = Web.BrowserContents(
        "https://stackoverflow.com/questions/68212487/how-to-merge-two-tables-based-off-key-table-in-power-bi"
      ), 
      #"Extracted Table From Html" = Html.Table(
        Source, 
        {
          {"Column1", "DIV.s-table-container:nth-child(9) > TABLE.s-table > * > TR > :nth-child(1)"}, 
          {"Column2", "DIV.s-table-container:nth-child(9) > TABLE.s-table > * > TR > :nth-child(2)"}, 
          {"Column3", "DIV.s-table-container:nth-child(9) > TABLE.s-table > * > TR > :nth-child(3)"}
        }, 
        [RowSelector = "DIV.s-table-container:nth-child(9) > TABLE.s-table > * > TR"]
      ), 
      #"Changed Type" = Table.TransformColumnTypes(
        #"Extracted Table From Html", 
        {{"Column1", type text}, {"Column2", type text}, {"Column3", type text}}
      ), 
      #"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars = true]), 
      #"Changed Type1" = Table.TransformColumnTypes(
        #"Promoted Headers", 
        {{"Employee Name", type text}, {"7P_ID", type text}, {"ZD_ID", type text}}
      ), 
      #"Removed Bottom Rows" = Table.RemoveLastN(#"Changed Type1", 1), 
      #"Unpivoted Columns" = Table.UnpivotOtherColumns(
        #"Removed Bottom Rows", 
        {"Employee Name"}, 
        "Attribute", 
        "Value"
      )
    in
      #"Unpivoted Columns", 
  #"T1+T2" = T1 & T2, 
  #"Merged Queries" = Table.NestedJoin(#"T1+T2", {"ID"}, T3, {"Value"}, "T1+T2", JoinKind.LeftOuter), 
  #"Expanded T1+T2" = Table.ExpandTableColumn(
    #"Merged Queries", 
    "T1+T2", 
    {"Employee Name"}, 
    {"Employee Name"}
  )
in
  #"Expanded T1+T2"