Forum Discussion
Helper IDates showing as year: 1899
I need some help. I have created a conditional column where the output data is a date. Yet power bi changed the year to 1899. I 've tried multiple ways to change the date in the column and unable.
IF startmonth = January then #date(2021,1,1)
Thanks in advance
This is what I see. StartMonth is a text datatype (it should be a datetime). It contains 5 possible values (in the visible data) , one of which is blank.
The code in the added column is looking for text values of December, January etc which it will never find. The code always falls through to the "else" clause which is 0. A 0 date represents 1/12/1899.
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It looks like you want to get the 1st of the month for a non-blank date and put that in a new column. That's straightforward to do.
In Power Query, select the StartMonth column. Change the datatype to Datetime.
Go to the Add Column menu.
From the ribbon, select Date->Month->start of month.
That will get the 1st of the month and put null in for empty dates.
How does that sound?
9 Replies
- HotChilli
Community Champion
Please show us the code for the conditional column and some sample data please
Sunnie= Table.AddColumn(#"Duplicated Column", "StartMonthDate", each if [StartMonth] = "January" then #date(2021, 1, 1) else if [StartMonth] = "February" then #date(2021, 2, 1) else if [StartMonth] = "March" then #date(2021, 3, 1) else if [StartMonth] = "April" then #date(2021, 4, 1) else if [StartMonth] = "May" then #date(2021, 5, 1) else if [StartMonth] = "June" then #date(2021, 6, 1) else if [StartMonth] = "July" then #date(2021, 7, 1) else if [StartMonth] = "August" then #date(2021, 8, 1) else if [StartMonth] = "September" then #date(2021, 9, 1) else if [StartMonth] = "October" then #date(2021, 10, 1) else if [StartMonth] = "November" then #date(2021, 11, 1) else if [StartMonth] = "December" then #date(2021, 12, 1) else 0)
- Sunnie
that data is confidential, the data pulls from a sharepoint page
- HotChilli
How can anyone debug if we can't see the StartMonth column?
- HotChilli
OK, i see the code (and the result column). I also need to see the sample data from the table otherwise I can't debug it.