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background:
I have in my main table a CreateDate. I have created a column of data from the main table, for each row, it contains 1 or more records. I am trying to grab the First Date from the newtable where the CreateDate is < the current Records CreateDate.
Previosly, I was grabbing First record like so:
= Table.AddColumn(#"Merged Queries1", "StartDate", each List.First([NewTable][CreateDate]))
This grabs the CreateDate correctly, but just grabbign the 1st regardless.
I would like to change this to something like this:
= Table.AddColumn(#"Added Custom3", "StartDate2", each List.First( List.Select([NewTable][CreateDate], _ < [CreateDate] )))
I get the following error:
Expression.Error: We cannot apply operator > to types Record and DateTime.
Details:
Operator=>
Left=Record
Right=1/12/2017 12:02:31 AM
Any ideas on how I can do this?
Sample Data:
CreateDate | Application | Severity | NewTable
1/12/2017 12:02:31 | TestApp | Info | <table>
<table> contents:
1/12/2017 12:01:00 | TestApp | Info
1/13/2017 12:01:00 | TestApp | Info
Thank you for any help
Joel
Solved! Go to Solution.
sorry, there was an Earlier missing:
= Table.AddColumn(#"Added Custom3", "StartDate2", (Earlier) => List.First( List.Select(Earlier[NewTable][CreateDate], each _ < Earlier[CreateDate] )))
Imke Feldmann (The BIccountant)
If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!
How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries
Pls try:
= Table.AddColumn(#"Added Custom3", "StartDate2", (Earlier) => List.First( List.Select([NewTable][CreateDate], each _ < Earlier[CreateDate] )))
Imke Feldmann (The BIccountant)
If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!
How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries
Thank you for the quick response. I am now getting this error:
Expression.Error: There is an unknown identifier. Did you use the [field] shorthand for a _[field] outside of an 'each' expression?
sorry, there was an Earlier missing:
= Table.AddColumn(#"Added Custom3", "StartDate2", (Earlier) => List.First( List.Select(Earlier[NewTable][CreateDate], each _ < Earlier[CreateDate] )))
Imke Feldmann (The BIccountant)
If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!
How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries
Thank you so much!
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