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davidz106
Helper III
Helper III

Subtract only first value of a column

I have two columns (StartTime and EndTime) where I want to create a new custom column where I subtract only first value of StartTime from each value in EndTime. Data time of both columns is Time. Suggestions appreciated.

1 ACCEPTED SOLUTION
v-yiruan-msft
Community Support
Community Support

Hi @davidz106 ,

You can get it in Power Query Editor, please find the details in the attachment.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("NYzJEQAhCARz4e0DEK9JxTL/NBZhfXZP1+xNCm5UqEOUTtlUIeY8oBxs4GR7bLef4Brcb1hovX6AV3DLvwmdzsLgGWJB5AqB5oNPar8ZaWJzo7BO53w=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [StartTime = _t, EndTime = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"StartTime", type time}, {"EndTime", type time}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each [EndTime]-#"Changed Type"[StartTime]{0}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom",{{"Custom", type duration}})
in
    #"Changed Type1"

yingyinr_0-1674193369679.png

Best Regards

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

View solution in original post

2 REPLIES 2
v-yiruan-msft
Community Support
Community Support

Hi @davidz106 ,

You can get it in Power Query Editor, please find the details in the attachment.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("NYzJEQAhCARz4e0DEK9JxTL/NBZhfXZP1+xNCm5UqEOUTtlUIeY8oBxs4GR7bLef4Brcb1hovX6AV3DLvwmdzsLgGWJB5AqB5oNPar8ZaWJzo7BO53w=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [StartTime = _t, EndTime = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"StartTime", type time}, {"EndTime", type time}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each [EndTime]-#"Changed Type"[StartTime]{0}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom",{{"Custom", type duration}})
in
    #"Changed Type1"

yingyinr_0-1674193369679.png

Best Regards

Community Support Team _ Rena
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
amitchandak
Super User
Super User

@davidz106 , Min and Max based on what

overall 

 

a new column

datediff(Min(Table[StartTime]), Max(Table[EndTime]) , second)

 

or based on id

 

datediff(MinX(filter(Table, [ID] = earlier([ID]) ),  Table[StartTime]), Max(filter(Table, [ID] = earlier([ID]) ),  Table[EndTime]) , second)

 

Earlier, I should have known Earlier: https://youtu.be/CVW6YwvHHi8

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