Power Query 将子级数据复制到层次结构中的父级

Question

我有一个具有父/子层次结构的表，其中列 (BinNum) 中子级的值需要传播或复制到父级。有没有办法在 Power Query 或 DAX 中执行此操作？

输入和结果表：

级别	顺序	BinNum		级别	顺序	BinNum
A10	1	0		A10	1	50
A10	2	0		A10	2	243
A10	3	0		A10	3	100
A10	4	0		A10	4	67
A10	5	0		A10	5	98
A10-05	1	0		A10-05	1	50
A10-05	2	0		A10-05	2	243
A10-05	3	0		A10-05	3	100
A10-05	4	0		A10-05	4	67
A10-05	5	0		A10-05	5	98
A10-05-01	1	50		A10-05-01	1	50
A10-05-01	2	243		A10-05-01	2	243
A10-05-01	3	100		A10-05-01	3	100
A10-05-01	4	67		A10-05-01	4	67
A10-05-01	5	98		A10-05-01	5	98
A10-06	1	0		A10-06	1	50
A10-06	2	0		A10-06	2	243
A10-06	3	0		A10-06	3	100
A10-06	4	0		A10-06	4	67
A10-06	5	0		A10-06	5	98
A10-06-01	1	50		A10-06-01	1	50
A10-06-01	2	243		A10-06-01	2	243
A10-06-01	3	100		A10-06-01	3	100
A10-06-01	4	67		A10-06-01	4	67
A10-06-01	5	98		A10-06-01	5	98

Answer 1

你可以试试这个，这是一个简单的单步合并

let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Added Index" = Table.AddIndexColumn(Source, "Index", 0, 1, Int64.Type),
#"Duplicated Column" = Table.DuplicateColumn(#"Added Index", "vel", "vel - Copy"),
#"Split Column by Delimiter" = Table.SplitColumn(#"Duplicated Column", "vel - Copy", Splitter.SplitTextByEachDelimiter({"-"}, QuoteStyle.Csv, false), {"vel - Copy.1", "vel - Copy.2"}),
#"Filtered Rows" = Table.SelectRows(#"Split Column by Delimiter", each ([BinNum] <> 0)),
#"Removed Duplicates" = Table.Distinct(#"Filtered Rows", {"Sequence", "vel - Copy.1"}),

#"Removed Columns" = Table.RemoveColumns(#"Split Column by Delimiter",{"BinNum", "vel - Copy.2"}),
#"Merged Queries" = Table.NestedJoin(#"Removed Columns", {"vel - Copy.1", "Sequence"}, #"Removed Duplicates", {"vel - Copy.1", "Sequence"}, "Table1", JoinKind.LeftOuter),
#"Expanded Table1" = Table.ExpandTableColumn(#"Merged Queries", "Table1", {"BinNum"}, {"BinNum"}),
#"Sorted Rows" = Table.Sort(#"Expanded Table1",{{"Index", Order.Ascending}}),
#"Removed Columns1" = Table.RemoveColumns(#"Sorted Rows",{"vel - Copy.1", "Index"})
in #"Removed Columns1"