Question

我有2个输入表。输入表1是源数据，输入表2是条件表。

+--------------------------+----------+  +--------------------------+-------+
|       TABLE 1 (Source data)         |  |       TABLE 2 (Criterias)        |
+-------------------------------------+  +----------------------------------+

+-------------------------------------+  +----------------------------------+
| DESCRIPTION              | VALUE    |  | PREFIX                   | CODE  |
+-------------------------------------+  +----------------------------------+
| ID                       | 0        |  | 7235                     | ABX1  |
| NAME                     | JFMSC    |  | 3553                     | POWQ  |
| TYPE                     | UHELQ    |  | 7459                     | UWEER |
| DFRUL                    | F4       |  | 10012                    | ABX1  |
| ADDR                     | 10012002 |  | 430                      | ABX1  |
| RRUL                     | P1       |  +--------------------------+-------+ 
| ADDR                     | 723      |  
| RRUL                     | P1       |  
| ID                       | 2        |  
| NAME                     | PLLSJS   |  
| TYPE                     | UHELQ    |  
| DFRUL                    | P3       |  
| ID                       | 4        |  
| NAME                     | AAAARR   |  
| TYPE                     | UHELQ    |  
| DFRUL                    | T7       |  
| ADDR                     | 35531156 |  
| RRUL                     | P1       |  
| ADDR                     | 72358    |  
| RRUL                     | P1       |  
| ADDR                     | 86401    |  
| RRUL                     | K9       |  
| ID                       | 0        |  
| NAME                     | PPROOA   |  
| TYPE                     | RRHN     |  
| DFRUL                    | P1       |  
| ADDR                     | 43001    |  
| RRUL                     | T8       |  
| ADDR                     | 7459001  |  
| RRUL                     | D4       |  
| ADDR                     | 430457   |  
| RRUL                     | W2       |  
| ADDR                     | 745913   |  
| RRUL                     | P1       |  
| ADDR                     | 74598001 |  
| RRUL                     | Y5       |  
+--------------------------+----------+

我的目标是获得一个如下所示的输出表（将是表＃4），根据“表2”的标准，显示与字段“ ADDR”的每个数量相比最相似的代码。如果每个ID都有重复的CODE，我只想显示一个（唯一代码列表）。

我在SampleV1.xlsx附件中提供的示例文件中对此进行了详细说明。

我想对基于输入表1和2的数据进行转换以获得这样的输出表（附件中的所需输出表＃2）：

+----+--------+-------+-------+-------+------+
| ID | NAME   | TYPE  | DFRUL | CODE  | RRUL |
+----+--------+-------+-------+-------+------+  
| 0  | JFMSC  | UHELQ | P1    | ABX1  | P1   |
| 2  | PLLSJS | UHELQ | P3    |       |      |
| 4  | AAAARR | UHELQ | T7    | POWQ  | P1   |
|    |        |       |       | ABX1  | P1   |
|    |        |       |       | 86401 | K9   |
| 0  | PPROOA | RRHN  | P1    | ABX1  | P1   |
|    |        |       |       | UWEER | P1   |
+----+--------+-------+-------+-------+------+

我希望有人可以帮助我。提前致谢。

Answer 1

下面是UPDATED解决方案。

总的来说，我编译了解决方案是为了尽可能减少数据问题。

对数据的唯一限制是：

字段集必须具有ID字段，该ID字段必须是集合的第一个字段。
所有RRUL和ADDR必须成对出现，
一个ID内的RRUL / ADDR对重复是可接受的还是不存在的。

我还以某种方式编译了解决方案，以正确找到ADDR和PREFIX的所有可能变体中的最接近值。顺便说一句-在大样本中没有涉及一种情况-当PREFIX比ADDR短但不等于ADDR时。如果出现这种情况，我的解决方案可以正确处理它们，但在这种情况下需要一些性能开销。

let
        Source = #"Source data",
    #"Added Index1" = Table.AddIndexColumn(Source, "Index", 0, 1),

    #"Added Custom" = Table.AddColumn(#"Added Index1", "Main Key", each if [DESCRIPTION] = "ID" then [Index] else null, type number),

    #"Added Custom10" = Table.AddColumn(#"Added Custom", "Last notADDR", each 
        if [DESCRIPTION] <> "ADDR" and [DESCRIPTION] <> "RRUL" then [Index] else null),

    #"Filled Down" = Table.FillDown(#"Added Custom10",{"Main Key", "Last notADDR"}),

    #"Added Custom2" = Table.AddColumn(#"Filled Down", "Key", each [Main Key] + (
        if [DESCRIPTION] = "RRUL" then [Index] - [Last notADDR] - 2 
            else if [DESCRIPTION] = "ADDR" then [Index] - [Last notADDR] - 1 else 0)),

    #"Removed Columns" = Table.RemoveColumns(#"Added Custom2",{"Index", "Main Key", "Last notADDR"}),

    #"Pivoted Column1" = Table.Pivot(#"Removed Columns", 
        List.Distinct(#"Removed Columns"[DESCRIPTION]), "DESCRIPTION", "VALUE"),

    #"Added Custom3" = Table.AddColumn(#"Pivoted Column1", "CODE", each if [ADDR] = null then null else let t = Table.AddIndexColumn(Table.SelectRows(Criterias, (x)=> 
        let s=List.Sort({x[PREFIX], [ADDR]}, each Text.Length(_)) in Text.StartsWith(s{1}, s{0})), "Index")
            in if Table.RowCount(t) > 0 then Table.First(Table.Sort(t, (y)=> Number.BitwiseShiftLeft(Number.Abs(Text.Length([ADDR]) - Text.Length(y[PREFIX])), 16) + y[Index]))[CODE] 
            else "Not Found"),
    #"Removed Columns1" = Table.RemoveColumns(#"Added Custom3",{"Key", "ADDR"}),
    #"Filled Down1" = Table.FillDown(#"Removed Columns1",{"ID", "NAME", "TYPE", "DFRUL"})
in
    #"Filled Down1"

Excel Power Query中的复杂转换

1 个答案: