如何按两列筛选 table

Question

我有以下 table:

ID	TEST_ID	Component	ComponentInfo
1	5	Test 1	Info
2	5	Test 1	AB 2
3	5	Test 1	XY
4	5	Test X	Info 2
5	5	Test X	Info 1
6	5	Test Y	Info 2
7	6	Test 1	Info 2
8	7	ABC	Info 1
9	8	XYZ	Info 2
9	9	XYZ	Info 2

我想获得以下输出：

TEST_ID	Component
5	Test 1
5	Test X
5	Test Y
6	Test 1
7	ABC
8	XYZ
9	XYZ

我觉得如果能在数据转换部分实现就好了。我该怎么做？

Answer 1

我在你的“问题”中没有看到任何过滤；相反，删除冗余列并保留唯一值。

M语言声明：

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUTIF4pDU4hIFEMczLy1fKVYnWskIXcbRScEILGOMLhMRCRY3QRaPgJoF1WOKVc4QLGeGLBeJqs8cyDVDdx9UzgLINQc7zBnVQEsg1wLsrihUHSAJSwyJWAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, TEST_ID = _t, Component = _t, ComponentInfo = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ID", Int64.Type}, {"TEST_ID", Int64.Type}, {"Component", type text}, {"ComponentInfo", type text}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type",{"ID", "ComponentInfo"}),
    #"Removed Duplicates" = Table.Distinct(#"Removed Columns")
in
    #"Removed Duplicates"

Answer 2

按 strg select TEST_ID 和组件，右键单击然后删除重复项

= Table.Distinct(#"更改类型", {"TEST_ID", "组件"})

这就是我需要的！ :-)

如何按两列筛选 table

How to filter table by two columns

powerbi