Converting List to Meaningful Data

[PiyushBQ]

Hi,

I have this table:

Date	A	B	C
5-Jan	9	43	133
6-Jan	2	48	118
Date	B	D	A
7-Jan	17	1050	7
8-Jan	14	1257	4

The desired output looks like the following:

Date	Item	Value
5-Jan	A	9
5-Jan	B	43
5-Jan	C	133
6-Jan	A	2
6-Jan	B	48
6-Jan	C	118
7-Jan	A	7
7-Jan	B	17
7-Jan	D	1050
8-Jan	A	4
8-Jan	B	14
8-Jan	D	1257

How do you suggest I go on about this? Unpivoting obviously doesn't work. 

[v-juanli-msft · Accepted solution]

Hi @PiyushBQ 

Copy and paste my query in advanced editor

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtX1SsxT0lGyBGITYyBhaGysFKsTrWQGlTACSViAJAwtwBIuiSWpQK4TELsAsSNY0Byq2tAcRBiYGgApc7CMBUzGBEQYmYIUmCjFxgIA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Date = _t, A = _t, B = _t, C = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Date", type text}, {"A", type text}, {"B", type text}, {"C", type text}}),
    #"Demoted Headers" = Table.DemoteHeaders(#"Changed Type"),
    #"Changed Type1" = Table.TransformColumnTypes(#"Demoted Headers",{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}}),
    #"Added Index" = Table.AddIndexColumn(#"Changed Type1", "Index", 1, 1),
    #"Added Conditional Column" = Table.AddColumn(#"Added Index", "Custom", each if [Column1] = "Date" then [Index] else null),
    #"Filled Down" = Table.FillDown(#"Added Conditional Column",{"Custom"}),
    #"Removed Columns" = Table.RemoveColumns(#"Filled Down",{"Index"}),
    #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Removed Columns", {"Column1", "Custom"}, "Attribute", "Value"),
    #"Sorted Rows" = Table.Sort(#"Unpivoted Columns",{{"Custom", Order.Ascending}, {"Attribute", Order.Ascending}, {"Value", Order.Descending}}),
    #"Duplicated Column" = Table.DuplicateColumn(#"Sorted Rows", "Value", "Value - Copy"),
    #"Changed Type2" = Table.TransformColumnTypes(#"Duplicated Column",{{"Value - Copy", type number}}),
    #"Replaced Errors" = Table.ReplaceErrorValues(#"Changed Type2", {{"Value - Copy", 9999}}),
    #"Added Conditional Column1" = Table.AddColumn(#"Replaced Errors", "Custom.1", each if [#"Value - Copy"] = 9999 then [Value] else null),
    #"Filled Down1" = Table.FillDown(#"Added Conditional Column1",{"Custom.1"}),
    #"Filtered Rows" = Table.SelectRows(#"Filled Down1", each [#"Value - Copy"] <> 9999),
    #"Removed Columns1" = Table.RemoveColumns(#"Filtered Rows",{"Custom", "Attribute", "Value - Copy"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Removed Columns1",{"Column1", "Custom.1", "Value"}),
    #"Sorted Rows1" = Table.Sort(#"Reordered Columns",{{"Column1", Order.Ascending}, {"Custom.1", Order.Ascending}})
in
    #"Sorted Rows1"

Best Regards
Maggie
Community Support Team _ Maggie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[PiyushBQ]

This is perfect, Maggie.

Thank you so much!

[parry2k]

@PiyushBQ unpivot should work and is the solution. 

- transform data
- select date column in the table table
- right-click, unpivot other columns it will add two columns, attribute, and value, rename these as per your requirement
- close and apply

To visual, take table visual, put date, attribute, and value to see the result.

I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!

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[PiyushBQ]

Thanks for taking the time out @parry2k 

Unpivoting is the first thing I tried, and it doesn't work.

Here's the output for you (notice how D gets missed out)

DateAttributeValue

1/5/2020	A	9
1/5/2020	B	43
1/5/2020	C	133
1/6/2020	A	2
1/6/2020	B	48
1/6/2020	C	118
Date	A	B
Date	B	D
Date	C	A
1/7/2020	A	17
1/7/2020	B	1050
1/7/2020	C	7
1/8/2020	A	14
1/8/2020	B	1257
1/8/2020	C	4